To demonstrate a variety of options, we obtained four identical standard 16-inch mid-length gas system barrels with government profiles (and 0.750-inch gas block) from Bravo Company USA. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. You are using an out of date browser. There is no benefit for an AR-15 to have an M4 profile barrel aside from historical accuracy (but even then, it needs to be a 14.5" barrel). Of course, a barrel that’s fluted too deeply loses critical strength to contain the immense pressures, and it’s possible to flute a barrel deeply enough that it bursts. AR-15 Barrel Profile: A2 Government vs M4 style? All their barrels are made in-house from “cradle to grave.” Plus they also supply lightweight barrels to a lot of other brands…shhhhhh. The problem, if there is one, is that a sling mount on the barrel (such as under a front sight base) applies that tension directly to the barrel when used this way, potentially creating a bit of “whip” and shifting the point of impact. A genuine SOCOM barrel has the typical M4 circumferential cut-out located approximately 1.4” forward of the gas block for the attachment of an M203, as well as rectangular shaped cut-outs underneath the hand-guards on the port and starboard sides of the barrel, located approximately 1.4” aft of the gas block, for the same reason. There’s also “dimpling,” machining a series of dimples along the barrel’s surface, making it reminiscent of a golf ball. I learned so much on the type of barrel I’m looking for to upgrade my AR platform . The government's heavy-handed tactics threaten to undermine the legitimacy of the election. The Government profile was an attempt to prevent the barrel from bending when used with a bayonet. FN Manufacturing 20 Inch Government Profile ( A2 ) Hammer Forged barrel. But there’s another way to get lightened weight without much flexion, and that’s fluting, which we’ll discuss in a moment. A Colt Socom barrel tested by Molon was capable of producing an 30 round average sub-MOA load with an extreme spread of .9 inches and a mean radius of .35. So not all flutes are created equal – shallow ones retain more strength, deeper ones help with cooling. The M16 had a lightweight barrel, 20″ long, with a 1:14 twist (quickly changed to 1:12) and it was treated with manganese phosphate. We’re going to get into AR-15 barrel profiles. It’s also worth noting that the profiles listed above aren’t the only ones available in AR barrels, just the most commonly available ones, and within those descriptions some include a number of variations. Another profile very much like the M4 is called the “government” profile: Basically the same, but without the M4 cut. This profile is now commonly called “A2”. I've never had any rifle string on me (even my FAL). Even government profile barrels are available unlined or hard chrome lined. If you want the solid dependability of a government profile barrel in 14.5 or 10.5-inch lengths, we have them too. The profile of the barrel isn’t technically an official M4 profile, but it’s very close. This allows extended relaxed stability, and followup shots are quick because the rifle returns to target on its own. Colt no longer stamps an “F” on their front sight bases, but their newer front sight bases maintain the length of 1.98” from the top of the barrel to the shelf for the front sight post. What heat they do absorb affects them less, enabling them to remain acceptably accurate at extended ranges. Molon you're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000 degrees. Our flagship AR15 M4 M16 barrels and the pride of our AR offerings are our Chrome Lined military clone barrels; these barrels feature a M4 contour, 1:7 twist rate, M4 barrel extension, 1/2x28 muzzle threading and are … If a barrel contains unresolved stresses from manufacturing it can expand unevenly or warp, which also affects point of impact (POI) as well as group size. That is only 2 ounces heavier than the ubiquitous 16” government profile barrel found on the Colt 6920. If there’s anyone that knows the AR-15 platform, it’s the US military. The SOCOM barrel has a stripped weight of 1 pound, 14 ounces. The design is a compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy. These are usually 18 and 20 inches respectively, and made of 416 stainless steel. News, special offers, exclusive discounts, and more! A cooler barrel expands less, and it remains more accurate. These barrels are heavier under the handguard and taper only minutely toward the muzzle, and that mass makes them both heat and cool more slowly. Continuous taper designed for optimal weight, balance, and performance. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. This involves disconnecting the butt end of the sling and pulling a loop into it. The date-code on my original SOCOM barrel was “11/03” and the date-code on my newer SOCOM barrel is “02/18”. My newer SOCOM barrel with the “02/18” date-code produced a 10-shot group fired from a distance of 100 yards that had an extreme spread of 0.93”. I’ve reviewed several of their barrels over the years and really like their stuff for the price point. Part 2: Barrel Length, Gas Systems, and Rifling Those lightweight barrels were actually pretty good, and helped keep the whole weapon light. As a side note, the pic below shows what a great job Ken Elmore of Specialized Armament does on his pin and weld jobs. While most civilians don’t have M203s, the barrels are still used to create “M4gery” rifles modeled on the military weapons. The 20" barrel gives you 5.5" more sight radius (14.5" vs 20"), which is a 40% increase. The solution is to free float the barrel, and mount the sling to the free float tube, leaving the barrel untouched. Beyond these come the true heavyweights – the HBAR (heavy barrel) and the even heavier bull barrel profiles. Most lightweight barrels can easily handle the four to six magazines of a usual loadout, provided you’re not shooting full auto. Click here to snag a copy. The rest of the sling, still connected to the forend of the rifle, is shortened until it applies tension between arm and rifle when the shooter relaxes. DS Arms manufactures our AR15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length, profiles and configurations. But some shooters fall back on an older configuration, known to military shooters as the 1907 style sling, when precise long-range shooting is called for. We should say we think that both guns are just about the same. This article by Wayne Anderson is part 4 of a 5-part series about AR-15 barrels. The fact is that a great deal depends on the depth and width of the flutes, since deeper flutes create more surface area. Im looking to get a 14.5 in, middy daniels defense (ill be building my next rifle after this) and im very used to government profile barrels being in the Marines. The most popular barrel profile now is the M4 style, sometimes a direct copy of the 14.5″ military M4 barrel, but more often slightly extended to 16″ for legal civilian use. The result is that, when done right, a fluted barrel will be stronger in certain areas, and more rigid in certain axes, than an unfluted barrel of the same weight. All of Del-Ton’s 16-inch AR barrel options use a mid-length gas system and are chambered to 5.56 NATO. JavaScript is disabled. The main categories, however, are the so-called government profile (standard) and then the lightweight version. Your articles are always much appreciated. To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. So I am currently on the market for a barrel to finish up my first AR build and I am torn between the SOCOM and Standard M4 gov profile barrels. Order your 16-inch AR 15 barrel in lightweight, government or heavy profiles — we have them all. In Barrett’s defense, they didn’t sell it that way; it was fluted by an aftermarket gunsmith.). Barrel life was something in excess of 9,000 rounds (keep in mind that's a 1:7 twist, shooting full auto=lots of heat buildup). Honestly looking for some opinions. The pic below shows the difference between the standard M4 barrel and the SOCOM barrel. Great article. Founded by Frank Galli in 2014, Sniper’s Hide has been offering informational videos, podcasts, and other support to it’s users in one location. There’s one more point of fluting worth mentioning: Bravo Company’s ELW (enhanced lightweight) barrel begins with a gracefully tapered profile, which allocates mass and strength along the barrel’s axis appropriate to the pressure loads. On the other hand, fluting can relieve manufacturing stresses in the steel. Of course, the more rigid barrels resist “whip” far better than the slim lightweight barrels, another reason to choose them when high accuracy is your main criterion. It’s been said that dimpling produces better thermal efficiency in shedding heat; of course, that would also depend on depth and surface area. APOC Armory. Choose barrel-only options, or have yours shipped with a barrel nut, front site base and a round handguard cap. There’s a reason most service personnel opt for the light M4 for general patrol work. Choose an AR 15 5.56 barrels in heavy profile or a lightweight AR barrel in lengths from 11.5 to 20 inches. The shooter’s forward (usually left) arm is placed through the loop and it’s pulled tight around the biceps area. Once relaxed into the sling, the shooter adjusts his body until the rifle is on target. Let’s wrap up this section with a couple of practical thoughts on barrel profiles. Required fields are marked *. The bore was not chromed. These Rifle Barrels feature a 1 in 10" twist. Maybe it didn’t feel light to a recruit doing exercises with it, but it was a whole lot lighter than an M14 or M1 Garand. In effect, you remove weight where you don’t need it, and keep strength where you do. Great article on AR-Barrels. Anderson.300 Blackout AR-15 M4 Profile Barrel Government Cut - Same as the M4, but lacks the grenade launcher cut. These barrels are meaty, big cylinders of steel devoid of any lightening in their profiles. A heavier barrel contains a lot more thermal mass, which means the heat can be spread into more steel, heating the barrel less overall. Faxonstarted off as aerospace parts manufacturers so they got their stuff and tolerances down. As it heats, steel expands minutely, and groups on target can expand measurably. The M4 barrel is lightweight under the handguards, until just before the gas port. 2) Weight can be your enemy or your friend, and where the weight is located matters. See the advantages of BCM Enhanced Profile Barrels. My original SOCOM barrel hand an “F-marked” front sight base. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. I could never understand why so many people offer M4 barrels as a selling point, especially when they're 16" and made of the incorrect steel. Fluting also increases the barrel’s surface area, which means that there’s more exposure to cooling air – in effect, the sides of the flutes act a little like cooling fins. Very informative, thanks for the great article. Moving toward heavier profiles, we come back to the Special Purpose Rifle (SPR) and Designated Marksman Rifle (DMR) barrels we discussed earlier. Fluted barrels are simple in concept, but seem to be the source of a lot of misunderstanding and controversy. The M4 barrel is lightweight under the handguards, until just before the gas port. You must log in or register to reply here. This allows it to be slotted into an M4 chassis without issue and either a gunsmith or your own hands can handle the installation, provided that you have the right tools. So any part that’s narrower than that means more time on the lathe. What matters is the distance from the mass to the force applying the rotation – which can be measured in foot-pounds, a measure of torque, or twisting force. The idea is long-range accuracy rather than a combat rifle. We have AR15 and M4 MELONITE barrels including pencil profile barrels, mid-length barrels, carbine barrels and pistol barrels for the .223 cartridge and the 5.56 NATO cartridge. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. 2) The quick handling of single-point slings has made them the popular style on patrol in combat zones these days. {"cart_token":"","hash":"","cart_data":""}, AR-15 Barrels: Caliber, Chamber, & the Best Steel Type for Your AR Barrel (Part 3), AR-15 Barrels – Surface Treatments & Muzzle Types (Part 5), AR15 Barrels: Profiles, Fluting, and Dimpling (Part 4). This has a skinny profile near the receiver and a thicker profile towards the muzzle. Im building a AR-15 with a 16 inch barrel my question is what is a better choice as far as barrel profile The standard A2 Government profile or the M4 style. If you’re going to be carrying a rifle for extended periods, lightweight barrels can be your friend. “Varmint” isn’t a specific profile; it’s more of a type of shooting. Remember, 4 minutes of angle at 100 yards is about 4 inches, and most combat shooting has been done at ranges shorter than 100 yards. It's finished in black nitride for a long lasting, performance product. As a special offer for our readers, you can get the Official US Army Manual for AR-15/M4/M16 right now – for free. That’s why a lighter barrel might cost more than a heavier one — you’re not buying steel by the pound. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. The USGI barrel profiles (often referred to as the Government Profile) enable the operator to carry their weapon for longer periods of time and deploy them faster than the heavier commercial H-Barrel counterparts. The stripped weight of the SOCOM barrel is 5 ounces heavier than the stripped weight of the standard Colt 14.5” M4 barrel. The Skinny (and Fat) on AR-15 Barrel Profiles. They’re designed for slow, precise and methodical shooting – more like sniping, less like “spray and pray.”. Two pounds at the end of a 1-foot bar exert the same 2 foot-pounds as one pound at the end of a two-foot bar. We carry QPQ treated barrels, Nitride Barrels and standard mil spec chrome lined barrels. In this article, we will cover the different AR 15 Barrel Profiles and understand the importance of fluting and dimpling in AR 15 barrels. (There’s a photo circulating of a fluted Barrett .50 barrel that burst along its flutes, and the muzzle brake is the only thing keeping it from looking like a banana peel. Varmint rifles tend to use very heavy barrels, usually 20-24″ long, and are generally made in stainless steel with a target crown. Unfortunately, I no longer own that barrel. AR-15.223 Wydle Government Barrel Heavy - Heavy barrels are thick from one end to the other and are, of course, literally heavy. Part 3: Caliber, Chamber, and Steel Types The next pic is a close-up comparing the two barrels in the area between the chamber and the gas block journal, showing you were the extra weight is added. A genuine Colt M4A1 SOCOM barrel is 14.5” long and has a. From the gas block journal forward, the two barrels are identical, SOCOM barrel on top, standard barrel on bottom. A fatigued gunner is a less accurate and less useful gunner. This group was fired off of sand-bags using match-grade hand-loads and a high magnification scope. Molon, good to see you back up on the net. Similar mission demands have otherwise made these very similar. Of course, that same moment of inertia will also stabilize the rifle a little better when it’s time to squeeze the trigger. AR barrels can be fluted before or after the gas block, but the gas port area itself is never fluted, due to the need for a full diameter at that point. Let’s dispel a myth right here: Fluting a barrel does NOT make it stronger, nor does it make it more rigid. Many makers have their own preferred profiles, and some custom barrel makers will cut you a barrel in any profile you’re willing to pay for. In summary: Lighter barrels are less fatiguing to carry; longer barrels are good for long-range shooting, and heavy barrels are best for bench shooting or extremely long range. Really informative summary. We’ll start this Daniel Defense DDM4V7 LW review by stating that this rifle is available in a couple of different finishes as well as a couple of different barrel profiles. 16" 5.56 / .223 ar-15 1x7 ballistic advantage m4 profile carbine length barrel - modern babl556014m retail: $160.00. What you can do is improve the ratio of strength to weight by carefully removing material in selected areas. You can’t achieve either of those things by removing material. A 16" mid-length gas barrel has the proper spacing to mount a bayonet. Thanks! Oct 7, 2014 #1 . -Mini-14s was more to do w/ barrel profile PLUS piston-system than barrel profile alone.-Anon at 5/13 #s and effects regarding M855 vs M193 are spot on.-Sling bending 20″ pencil barrel and affecting POI is real — and the same bend applies to gov’t profile barrels … Some people like flutes because they look cool. The government profile barrel is also compatible with the current M203 mounting systems. After the gas port it gets heavier, out to the muzzle. At the request of the Marines the M16A2 was given a chromed bore and a heavier barrel profile forward of the gas block, mainly to minimize the chance of bending (one of the A1’s most common failures in close combat). This new build features a Colt cage-code marked M4 upper receiver, a Colt “C” marked bolt carrier group and a 13” Geissele MK14 M-LOK free-float hand-guard. 16″ Pencil Barrel [Review] 2. In the beginning, Eugene Stoner created the AR, which was upgraded to selective fire and named the M16 by the US Government. Both of these SOCOM barrels have the “O” stamp near the chamber portion of the barrel, indicating the barrel has a chrome-lined chamber and bore. 3) Not physics but economics: When a manufacturer starts with a barrel “blank” and turns it to a specified profile on a lathe, removing more metal = more time and tooling = higher cost to you, the buyer. .223/5.56mm Barrels for AR15 & M4 Rifles. That lightweight barrel, now commonly called the A1 or “pencil” barrel, was good for snapping off single shots but not as good for full-auto shooting. A nice and tidy overview of AR barrels, and without a lot of nonsense. Magpul Industries AR-15 Parts & Accessories, Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels, Part 2: Barrel Length, Gas Systems, and Rifling, Part 3: Caliber, Chamber, and Steel Types, Part 5: Surface Treatments and Muzzle Types, The Best Budget AR15s – Optics Ready and High Value, Top Picks: Best AR-15 Scopes for Your Money, 3 Ways to Correct Cross Eye Dominance When Shooting. What’s important here is called “moment of inertia,” which is how a physicist says that it’s easier to rotate a 10 pound dumbbell in your hand than a 10 pound barbell. You want this barrel, really, if you want a barrel that you can take anywhere, this is the one. For our purposes, a gas block or muzzle brake further out on a 20″ or 24″ barrel will feel heavier than the same device on a 16″ or 14.5″ barrel. The theory is that you’re shooting prairie dogs and coyotes on your ranch (or similar shooting), or informal competition. Glad to see the quality is still top notch for these barrels, one of my favorites out there. There are other options available too, not from double star, but you might consider lightweight, or gov. They offer enough thermal mass to absorb a lot of shooting and remain rigid and accurate for a long time. Hey guys! blakeforeal New Member. While they’re generally considered pretty heavy to pack around in the field (military, hunt, or even 3-gun), they’re great for bench target shooting and long distance precision shooting. Of course, that makes it slightly heavier, but the difference is minimal. 14.5″ Pencil Barrel with Attached Muzzle [Review] Bu… Take note that on page 2 he compares the SOCOM to two 16 inch m4 profile barrels which he noted performed basically the same as their 14.5 inch counterparts. 1. Fluting increases cooling surface area, but also removes thermal mass, so the cooling gains are at least partly offset by lost thermal mass. Your email address will not be published. Chambered in 5.56×45mm NATO used the 62gr SS109/M855 cartridge with a 1:7 barrel twist with a government profile barrel. Recently, I assembled another upper receiver group based on the Colt M4A1 SOCOM barrel. I have read all of your stuff; very informative. That group was fired from my bench-rest set-up using match-grade hand-loads and a high magnification scope. In 2010, my original SOCOM barrel with the “11/03” date-code produced a 10-shot group fired from a distance of 100 yards that had an extreme spread of 0.90”. M16A4 has a 600 meter effective range. Yes, lightweight barrels heat up faster, and the groups will open up, but usually we’re talking about a change on the order of 1.5-2 MOA accuracy opening up to 3 or maybe 4 MOA. Barrel and chamber are chrome lined to a specification that is almost double the thickness of a standard M4/M16 Mil-Spec barrel and are stamped with the FN oval Simply put, a fluted barrel is one that has had material removed from the outer surface, generally in grooves that run lengthwise along part of the barrel. They’ll happily tell you that the HBAR or bull barrels can absorb the heat and retain accuracy, and they’re right. This makes an elegant and beautiful solution to optimizing the barrel; it’s a pity that most of it will be covered by a handguard. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. There is also the “Government” profile found on the M16A2, M4 carbine, and many civilian rifles. AR-15, M16, M4, 11.5",BCM Enhance Profile Barrels. For point shooting, this is a significant advantage. This leads to decorative embellishments like spiral fluting, or, further yet, diamond fluting, created by cutting spiral flutes first clockwise around the barrel, then counterclockwise. The additional weight really doesn’t do much as a heat sink, since most of the pressure and heat is before the gas block, but it does help a little to stabilize the rifle for offhand shooting. Besides the A1 “pencil” and A2 barrel profiles, there are two more recent significant developments: The “S2W” (strength-to-weight [ratio]) barrel, a CHF barrel by Daniel Defense, sold with a chromed bore, and the “ELW” (enhanced lightweight) profile from Bravo Company Mfg. In a survival scenario it’s more likely that your rifle will spend most of its time slung on your back, where the lighter weapon will produce less fatigue, and will be used only occasionally. Colt M4A1 SOCOM Barrel Accuracy: Another Look. weapon of choice, imagining pouring magazine after magazine of destruction on advancing waves of ravening Nazi Klingon zombies. 3) Some shooters choose heavy barrels for their “SHTF” (stands for “civil unrest”, trust me!) some say that the m4 cuts mess with barrel harmonics...Shrug, I don't know, i haven't tested this assertion myself. The most popular barrel profile now is the M4 style, sometimes a direct copy of the 14.5″ military M4 barrel, but more often slightly extended to 16″ for legal civilian use. But first, some notes from your physics class: 1) Heat is the enemy of accuracy. A2 style muzzle brake. Part 5: Surface Treatments and Muzzle Types. This is important for precision shooting – but less important for short-range or casual gunnery. M4 pertains to carbine only but "Government" profile pertains to the M4 and the M16. Barrel has 5.56 Nato chamber, 1/7 twist rate, M4 barrel extension, rifle length gas system, threaded ½ x 28 muzzle and Mil-Spec phosphate coated. The one big drawback to pinned and welded flash-hiders is that you're basically stuck with that configuration once it's pinned and welded. Ya don't need a M4, unless you have an old fashioned grenade launcher. Naturally, the M4A1 SOCOM barrel has M4 feed ramps. Government: This mid-range barrel profile is most often used in the AR-15’s military counterpart, the M16. On an assembled URG (upper receiver group), the M4 barrel is identifiable by the “M4 cut” – and here we’re not talking about feed ramps, but rather a narrower “notch” in the barrel, forward of the gas block, used to mount the M203 grenade launcher. Both test consisted of one 10 shot group? Just what I needed! For those complaining about weight, an M16A1 profile 20" barrel weighs almost exactly the same as a 16" M4 profile barrel. The profile of a barrel refers the thickness of metal at different points along its length. Does your original barrel still shoot pretty well after all this time? Their data showed that the M4 profile barrel actually outlasted the others. Barrel Contours: Tale of the Tape. Thanks so much. Your email address will not be published. In 2010, I posted one of the first publicly available, in-depth. If the hordes of zombies are so close that you’re dumping magazines at them, an increase from 2 to 3 MOA accuracy won’t substantially affect your hits, and you’d be far better off taking carefully placed head shots anyway. When it is used, the light barrel will probably easily handle as much ammo as you can comfortably carry. Nice to see you over here as well. The Recce barrel is stainless, generally 16″ long with a mid-length gas system, and heavy under the handguard, where the extra weight does provide useful thermal mass. But… how many magazines are they planning to carry? There’s another thing to think about — the barrel’s mass acts as a heat sink. You’ll see “varmint” barrels mentioned here and there. Colt SOCOM barrel All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. Does your original barrel still shoot pretty well after all this time? The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels profile. Colt gets bashed at times, but they sure seem to make some accurate military grade barrels at a good price. SOCOM vs. Standard M4 gov profile barrel. The military standard is 4 MOA, and that’s pretty much good enough to hit a man-sized target at 100 yards if you take the time to aim properly. Next we find a profile often called “Recce” (military slang for “reconnaissance”). The reason the M4 barrel profile is so successful vs other “pencil” barrel designs is because it is a excellent compromise between light weight and accuracy. We sent three of them to Adco Firearms to be dimpled, fluted and turned down to a lightweight contour. Some people will tell you it’s significant, others will say the additional cooling is almost too little to measure. ... A selection Daniel Defense M4 AR15 Barrels demonstrating the Government profile. 4 0 0. This matters when you remember that any barrel, no matter how slim, has to start with a blank at least the diameter of the gas block – usually either .625″ or .750″. It may not display this or other websites correctly. This profile uses a 1:8 twist to allow 77-grain rounds, and was designed at the request of Navy SEALs who found the 18″ SPR barrel too long for their purposes but still needed a high precision (sub-MOA) combat rifle. Some will tell you it improves barrel cooling. For a better experience, please enable JavaScript in your browser before proceeding. (Gov is M4 in the carbine) In a carbine with an M4 profile barrel it will either be 14.5 or 16 inches long, lightweight under the handguards, and there will be a notch cut into the barrel forward of the front sight for mounting a grenade launcher. This barrel is also offered with straight flutes, which begin near the chamber, cut deep, but as the profile tapers the flutes become shallower until they end entirely. 1) We didn’t mention barrel “whip”; a term you’ll hear sometimes to describe barrel flexion while shooting, which obviously affects the point of impact. Everyone agrees that it makes them lighter. The Navy Recce rifles have used barrels by premium custom makers like Krieger and Lilja, though other makers offer similar profiles to civilians under the Recce name. Uses the 30 round standard magazine. Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. The lightweight barrel profiles discussed above were usually designed for the common infantryman, shooting at relatively short ranges, and intended to deal reasonably well with rapid fire. The ELW barrel is available with fluting as an option for further lightening. Shooting a rifle generates a great deal of heat, and the barrel absorbs a lot of it. Some people will tell you that fluting makes a barrel stronger or more rigid. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. They offer enough thermal mass to absorb a lot of it but they sure seem be... Mentioned here and there, lightweight barrels can easily handle the four to six magazines a... Never had any rifle string on me ( even my FAL ) extended ranges for “ civil ”. Much on the other and are, of course, literally heavy hard chrome lined weight can be your or... Hbar ( heavy barrel ) and then the lightweight version – for free heavy... 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On AR-15 barrel profile is now commonly called “ Recce ” ( military slang for “ reconnaissance )... Their stuff and tolerances down 16-inch barrel is also the “ government ” profile: A2 government M4! Of destruction on advancing waves of ravening Nazi Klingon zombies heavy barrels for their “ SHTF (., SOCOM barrel profiles — we have them too and more ( on top ) and the barrel, then... But it ’ s anyone that knows the AR-15 ’ s a reason service... Accuracy on Arfcom up about 10,000 degrees though usually sold with a barrel stronger or rigid. A fatigued gunner is a less accurate and less useful gunner why a lighter barrel might cost more a. Never had any rifle string on me ( even my FAL ) relaxed into the sling the! Other brands…shhhhhh as the M4 family of rifles have a 14.5 inch barrel length, and. ( military slang for “ civil unrest ”, trust me! the net planning to carry should. Long-Range accuracy rather than a heavier one — you ’ re not shooting full auto are quick because rifle! The quality is still top notch for these barrels, Nitride barrels and standard spec. And helped keep the whole weapon light “ SHTF ” ( military for. Counterpart, the M4A1 SOCOM barrel has M4 feed ramps a heavier one — ’. M16 barrels from the gas port it gets heavier, out to the muzzle Arfcom about. Barrel - modern babl556014m retail: $ 160.00 read all of your stuff ; very informative of. Heat is the enemy of accuracy on Arfcom up about 10,000 degrees mil spec chrome barrels! Just about the same 2 foot-pounds as one pound at the end of the M4 barrel is lightweight under handguards... People will tell you that fluting makes a barrel that you can the... M4 profile barrel in lengths from 11.5 to 20 inches respectively, and helped keep the whole light. Allows extended relaxed stability, and where the weight is located matters 11.5 to 20 inches,. Websites correctly re going to be dependable, and keep strength where you.... ( or similar shooting ), or informal competition there ’ s the US military milled. This is important for precision shooting – more like sniping, less like “ spray and pray..... Heavy-Handed tactics threaten to undermine the legitimacy of the barrel untouched fluting an. Thermal mass to absorb a lot of shooting and remain rigid and accurate pinned and welded flash-hiders that! Without a lot of it between weight for carrying and handling and muzzle velocity and heat absorption to optimize.., out to the muzzle grenade launcher government barrel heavy - heavy barrels are thick from one end to free... A lighter barrel might cost more than a heavier one — you re. Flutes, since deeper flutes create more surface area long rifle that needs be... Re shooting prairie dogs and coyotes on your ranch ( or similar shooting ), or have yours shipped a! M looking for to upgrade my AR platform military counterpart, the light barrel probably! Float tube, leaving the barrel ’ s another thing to think about — barrel... These barrels are available unlined or hard chrome lined barrels shoot pretty well after all this time using hand-loads! Barrel untouched however, are the so-called government profile barrels it doesnt make that of!. ) babl556014m retail: $ 160.00 weighs almost exactly the same 2 foot-pounds as one pound the... Carbine only but `` government '' profile pertains to the M4 is called the “ government profile! One — you ’ re not shooting full auto 10 '' twist target crown profile of the election is 2... Less, enabling them to Adco Firearms to be carrying a rifle extended... ' started by blakeforeal, Oct 7, 2014 on bottom Defense M4 AR15 barrels demonstrating the profile... And is milled from 4150 chrome Moly Vanadium steel this profile is most often used in AR-15. To optimize accuracy heavier than the stripped weight of the election guns are just about the same, lacks! To pinned and welded flash-hiders is that you can do is improve the ratio of strength to by! Or 10.5-inch lengths, we have them too full auto made them the popular on... Manual for AR-15/M4/M16 right now – for free light M4 for general patrol.... Otherwise made these very similar readers, you remove weight where you don ’ t need it and. Is improve the ratio of strength to weight by carefully removing material a heat sink demonstrating the government profile A2! Long, and ballistics the date-code on my newer SOCOM barrel steel devoid of any lightening their... An AR 15 5.56 barrels in heavy profile or a lightweight AR barrel lengths! 'S finished in black Nitride for a long rifle that needs to be,... Faxonstarted off as aerospace parts manufacturers so they got their stuff and down... A weight difference and it remains more accurate theory is that a great deal of heat, and where weight. Opt for the light barrel will probably easily handle the four to six magazines of 16... This time the other and are, of course, literally heavy pencil ” or “ A1 ” barrels here! Port on a genuine SOCOM barrel has a diameter of 0.062 ” and the isn... Molon you 're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000.! And turned down to a lot of other brands…shhhhhh is also the “ government ” profile: government. Top notch for these barrels, Nitride barrels and standard mil spec chrome lined.. The quick handling of single-point slings has made them the popular style patrol... Then remains heavier out to the other hand, fluting can relieve Manufacturing stresses the. The so-called government profile barrels are meaty, big cylinders of steel devoid any. Time on the net ELW barrel is 14.5 ” M4 barrel is 02/18. The AR-15 ’ s why a lighter barrel might cost more than a combat.. Enemy of accuracy s another thing to think about — the barrel employs a carbine-length gas system ''! Many magazines are they planning to carry 14.5 or 10.5-inch lengths, we have them.. A chromed bore barrel length, profiles and configurations ballistic advantage M4 profile barrel on! Snipers of all kinds, focusing on long range shooting, accuracy, even in rapid fire probably. Two-Foot bar to a lightweight AR barrel in lengths from 11.5 to 20.! And followup shots are quick because the rifle returns to target on its own weight where don. However, are the so-called government profile and is milled from 4150 chrome Moly Vanadium steel: 160.00. S Defense, m4 profile barrel vs government profile didn ’ t sell it that way ; it was fluted an. Fluting can relieve Manufacturing stresses in the AR-15 platform, it doesnt make much... The sling, the two barrels are more accurate AR-15 barrel profiles a M4, unless have... Official US Army Manual for AR-15/M4/M16 right now – for free and brought the of. Stresses in the steel good price “ Recce ” ( stands for civil. Re going to get into AR-15 barrel profiles barrel employs m4 profile barrel vs government profile carbine-length gas.. Depends on the type of shooting and remain rigid and accurate for a long lasting performance! You don ’ t a specific profile ; it ’ s narrower than that means time! “ A1 ” barrels are still available, in-depth m4 profile barrel vs government profile shooting – more sniping. Colt 14.5 ” M4 barrel is available with fluting as an option for further lightening barrel in from... Less like “ spray and pray. ”, one of the sling to the M4 and the barrel.... The popular style on patrol in combat zones these days difference between the standard barrel... Sight base based on the depth and width of the barrel untouched.223 AR-15 ballistic! Port on a genuine SOCOM barrel is also compatible with the current M203 mounting.. Assembled another upper receiver group based on the M16A2, M4 carbine, and more at extended..

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