The pic below shows the difference between the standard M4 barrel and the SOCOM barrel. A fatigued gunner is a less accurate and less useful gunner. 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. As a special offer for our readers, you can get the Official US Army Manual for AR-15/M4/M16 right now – for free. 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. 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. The fact is that a great deal depends on the depth and width of the flutes, since deeper flutes create more surface area. To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. 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. These Rifle Barrels feature a 1 in 10" twist. I’ve reviewed several of their barrels over the years and really like their stuff for the price point. 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. 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. Hey guys! All their barrels are made in-house from “cradle to grave.” Plus they also supply lightweight barrels to a lot of other brands…shhhhhh. Their data showed that the M4 profile barrel actually outlasted the others. 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. We sent three of them to Adco Firearms to be dimpled, fluted and turned down to a lightweight contour. Choose an AR 15 5.56 barrels in heavy profile or a lightweight AR barrel in lengths from 11.5 to 20 inches. Those lightweight barrels were actually pretty good, and helped keep the whole weapon light. If you’re going to be carrying a rifle for extended periods, lightweight barrels can be your friend. That group was fired from my bench-rest set-up using match-grade hand-loads and a high magnification scope. Anderson.300 Blackout AR-15 M4 Profile Barrel Government Cut - Same as the M4, but lacks the grenade launcher cut. {"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). Colt gets bashed at times, but they sure seem to make some accurate military grade barrels at a good price. The SOCOM barrel has a stripped weight of 1 pound, 14 ounces. 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. That’s why a lighter barrel might cost more than a heavier one — you’re not buying steel by the pound. In this article, we will cover the different AR 15 Barrel Profiles and understand the importance of fluting and dimpling in AR 15 barrels. We should say we think that both guns are just about the same. 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. 4 0 0. When it is used, the light barrel will probably easily handle as much ammo as you can comfortably carry. Choose barrel-only options, or have yours shipped with a barrel nut, front site base and a round handguard cap. 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. Once relaxed into the sling, the shooter adjusts his body until the rifle is on target. All of Del-Ton’s 16-inch AR barrel options use a mid-length gas system and are chambered to 5.56 NATO. SOCOM vs. Standard M4 gov profile barrel. Everyone agrees that it makes them lighter. 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″. 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 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. There are other options available too, not from double star, but you might consider lightweight, or gov. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. This allows extended relaxed stability, and followup shots are quick because the rifle returns to target on its own. 2) The quick handling of single-point slings has made them the popular style on patrol in combat zones these days. What heat they do absorb affects them less, enabling them to remain acceptably accurate at extended ranges. profile. Part 5: Surface Treatments and Muzzle Types. A nice and tidy overview of AR barrels, and without a lot of nonsense. Thanks so much. So any part that’s narrower than that means more time on the lathe. This article by Wayne Anderson is part 4 of a 5-part series about AR-15 barrels. Naturally, the M4A1 SOCOM barrel has M4 feed ramps. blakeforeal New Member. I have read all of your stuff; very informative. A 16" mid-length gas barrel has the proper spacing to mount a bayonet. 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. For a better experience, please enable JavaScript in your browser before proceeding. Really informative summary. There’s a reason most service personnel opt for the light M4 for general patrol work. They offer enough thermal mass to absorb a lot of shooting and remain rigid and accurate for a long time. As a side note, the pic below shows what a great job Ken Elmore of Specialized Armament does on his pin and weld jobs. In Barrett’s defense, they didn’t sell it that way; it was fluted by an aftermarket gunsmith.). Let’s dispel a myth right here: Fluting a barrel does NOT make it stronger, nor does it make it more rigid. Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. 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. You must log in or register to reply here. 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 … Varmint rifles tend to use very heavy barrels, usually 20-24″ long, and are generally made in stainless steel with a target crown. We’re going to get into AR-15 barrel profiles. 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. These are usually 18 and 20 inches respectively, and made of 416 stainless steel. Let’s wrap up this section with a couple of practical thoughts on barrel profiles. 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. 14.5″ Pencil Barrel with Attached Muzzle [Review] Bu… 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. DS Arms manufactures our AR15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length, profiles and configurations. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. Click here to snag a copy. See the advantages of BCM Enhanced Profile Barrels. This involves disconnecting the butt end of the sling and pulling a loop into it. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. There is also the “Government” profile found on the M16A2, M4 carbine, and many civilian rifles. Faxonstarted off as aerospace parts manufacturers so they got their stuff and tolerances down. 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. 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. You are using an out of date browser. My original SOCOM barrel hand an “F-marked” front sight base. AR-15 Barrel Profile: A2 Government vs M4 style? The date-code on my original SOCOM barrel was “11/03” and the date-code on my newer SOCOM barrel is “02/18”. It’s been said that dimpling produces better thermal efficiency in shedding heat; of course, that would also depend on depth and surface area. 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. Required fields are marked *. 2) Weight can be your enemy or your friend, and where the weight is located matters. 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). 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. 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. 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. News, special offers, exclusive discounts, and more! some say that the m4 cuts mess with barrel harmonics...Shrug, I don't know, i haven't tested this assertion myself. You’ll see “varmint” barrels mentioned here and there. The main categories, however, are the so-called government profile (standard) and then the lightweight version. For point shooting, this is a significant advantage. Thanks! AR-15.223 Wydle Government Barrel Heavy - Heavy barrels are thick from one end to the other and are, of course, literally heavy. This group was fired off of sand-bags using match-grade hand-loads and a high magnification scope. weapon of choice, imagining pouring magazine after magazine of destruction on advancing waves of ravening Nazi Klingon zombies. 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. 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. The profile of the barrel isn’t technically an official M4 profile, but it’s very close. 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. Colt M4A1 SOCOM Barrel Accuracy: Another Look. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. 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. You can’t achieve either of those things by removing material. On the other hand, fluting can relieve manufacturing stresses in the steel. In effect, you remove weight where you don’t need it, and keep strength where you do. Another profile very much like the M4 is called the “government” profile: Basically the same, but without the M4 cut. Oct 7, 2014 #1 . (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. The M4 barrel is lightweight under the handguards, until just before the gas port. Government: This mid-range barrel profile is most often used in the AR-15’s military counterpart, the M16. A genuine Colt M4A1 SOCOM barrel is 14.5” long and has a. There’s another thing to think about — the barrel’s mass acts as a heat sink. 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. The profile of a barrel refers the thickness of metal at different points along its length. Even government profile barrels are available unlined or hard chrome lined. Your articles are always much appreciated. If there’s anyone that knows the AR-15 platform, it’s the US military. Does your original barrel still shoot pretty well after all this time? 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. 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. They’re designed for slow, precise and methodical shooting – more like sniping, less like “spray and pray.”. -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 … A heavier barrel contains a lot more thermal mass, which means the heat can be spread into more steel, heating the barrel less overall. 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. In 2010, I posted one of the first publicly available, in-depth. Part 2: Barrel Length, Gas Systems, and Rifling Unfortunately, I no longer own that barrel. Uses the 30 round standard magazine. As it heats, steel expands minutely, and groups on target can expand measurably. It may not display this or other websites correctly. They’ll happily tell you that the HBAR or bull barrels can absorb the heat and retain accuracy, and they’re right. Some people will tell you it’s significant, others will say the additional cooling is almost too little to measure. 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. 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”. In the beginning, Eugene Stoner created the AR, which was upgraded to selective fire and named the M16 by the US Government. (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. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. Next we find a profile often called “Recce” (military slang for “reconnaissance”). I learned so much on the type of barrel I’m looking for to upgrade my AR platform . Some people will tell you that fluting makes a barrel stronger or more rigid. These barrels are meaty, big cylinders of steel devoid of any lightening in their profiles. Glad to see the quality is still top notch for these barrels, one of my favorites out there. 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. 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 stripped weight of the SOCOM barrel is 5 ounces heavier than the stripped weight of the standard Colt 14.5” M4 barrel. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. 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. 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. 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. APOC Armory. JavaScript is disabled. Fluted barrels are simple in concept, but seem to be the source of a lot of misunderstanding and controversy. The government's heavy-handed tactics threaten to undermine the legitimacy of the election. This profile is now commonly called “A2”. Moving toward heavier profiles, we come back to the Special Purpose Rifle (SPR) and Designated Marksman Rifle (DMR) barrels we discussed earlier. “Varmint” isn’t a specific profile; it’s more of a type of shooting. We carry QPQ treated barrels, Nitride Barrels and standard mil spec chrome lined barrels. Order your 16-inch AR 15 barrel in lightweight, government or heavy profiles — we have them all. You want this barrel, really, if you want a barrel that you can take anywhere, this is the one. .223/5.56mm Barrels for AR15 & M4 Rifles. Recently, I assembled another upper receiver group based on the Colt M4A1 SOCOM barrel. Part 3: Caliber, Chamber, and Steel Types 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. That is only 2 ounces heavier than the ubiquitous 16” government profile barrel found on the Colt 6920. Both test consisted of one 10 shot group? 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). 16″ Pencil Barrel [Review] 2. Does your original barrel still shoot pretty well after all this time? So not all flutes are created equal – shallow ones retain more strength, deeper ones help with cooling. 16" 5.56 / .223 ar-15 1x7 ballistic advantage m4 profile carbine length barrel - modern babl556014m retail: $160.00. 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. 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. It's finished in black nitride for a long lasting, performance product. Nice to see you over here as well. 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. A2 style muzzle brake. Your email address will not be published. The idea is long-range accuracy rather than a combat rifle. For those complaining about weight, an M16A1 profile 20" barrel weighs almost exactly the same as a 16" M4 profile barrel. 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. The 20" barrel gives you 5.5" more sight radius (14.5" vs 20"), which is a 40% increase. Some people like flutes because they look cool. 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 selection Daniel Defense M4 AR15 Barrels demonstrating the Government profile. 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. Barrel Contours: Tale of the Tape. While most civilians don’t have M203s, the barrels are still used to create “M4gery” rifles modeled on the military weapons. Fluting increases cooling surface area, but also removes thermal mass, so the cooling gains are at least partly offset by lost thermal mass. Molon you're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000 degrees. The theory is that you’re shooting prairie dogs and coyotes on your ranch (or similar shooting), or informal competition. The M4 barrel is lightweight under the handguards, until just before the gas port. 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 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. 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. This has a skinny profile near the receiver and a thicker profile towards the muzzle. Beyond these come the true heavyweights – the HBAR (heavy barrel) and the even heavier bull barrel profiles. But there’s another way to get lightened weight without much flexion, and that’s fluting, which we’ll discuss in a moment. 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. 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”. After the gas port it gets heavier, out to the muzzle. Most lightweight barrels can easily handle the four to six magazines of a usual loadout, provided you’re not shooting full auto. M4 pertains to carbine only but "Government" profile pertains to the M4 and the M16. The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels 3) Some shooters choose heavy barrels for their “SHTF” (stands for “civil unrest”, trust me!) The Government profile was an attempt to prevent the barrel from bending when used with a bayonet. The shooter’s forward (usually left) arm is placed through the loop and it’s pulled tight around the biceps area. 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. Your email address will not be published. Of course, that same moment of inertia will also stabilize the rifle a little better when it’s time to squeeze the trigger. The design is a compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy. If you want the solid dependability of a government profile barrel in 14.5 or 10.5-inch lengths, we have them too. I've never had any rifle string on me (even my FAL). 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. Great article on AR-Barrels. There’s also “dimpling,” machining a series of dimples along the barrel’s surface, making it reminiscent of a golf ball. The bore was not chromed. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. Honestly looking for some opinions. 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. But first, some notes from your physics class: 1) Heat is the enemy of accuracy. Continuous taper designed for optimal weight, balance, and performance. 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. M16A4 has a 600 meter effective range. The ELW barrel is available with fluting as an option for further lightening. Colt SOCOM barrel Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. 1. This is important for precision shooting – but less important for short-range or casual gunnery. FN Manufacturing 20 Inch Government Profile ( A2 ) Hammer Forged barrel. 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. What you can do is improve the ratio of strength to weight by carefully removing material in selected areas. Molon, good to see you back up on the net. Chambered in 5.56×45mm NATO used the 62gr SS109/M855 cartridge with a 1:7 barrel twist with a government profile barrel. The government profile barrel is also compatible with the current M203 mounting systems. 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. 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. 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. Some will tell you it improves barrel cooling. 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. From the gas block journal forward, the two barrels are identical, SOCOM barrel on top, standard barrel on bottom. Similar mission demands have otherwise made these very similar. Great article. The Skinny (and Fat) on AR-15 Barrel Profiles. AR-15, M16, M4, 11.5",BCM Enhance Profile Barrels. 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. 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. Of course, that makes it slightly heavier, but the difference is minimal. All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. A cooler barrel expands less, and it remains more accurate. Very informative, thanks for the great article. The solution is to free float the barrel, and mount the sling to the free float tube, leaving the barrel untouched. Ya don't need a M4, unless you have an old fashioned grenade launcher. 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. 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. Shooting a rifle generates a great deal of heat, and the barrel absorbs a lot of it. The extra thickness near the muzzle has no measurable difference in accuracy, even in rapid fire. Just what I needed! 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. Categories, however, are the so-called government profile ( A2 ) Forged! Lacks the grenade launcher cut re designed for optimal weight, balance, and.! From “ cradle to grave. ” Plus they also supply lightweight barrels to a AR! Pound, 14 ounces located matters demonstrating the government profile ( standard and. A significant advantage in or register to reply here it heats, steel expands minutely, and shots. Ratio of strength to weight by carefully removing material in selected areas magazine after magazine destruction. You want a barrel refers the thickness of metal at different points along its length ’. Ve reviewed several of their barrels over the years and really like their stuff and tolerances.. The AR, which was upgraded to selective fire and named the M16 by the US military take. The muzzle AR15 M4 M16 barrels from the gas block journal forward, the light M4 general! The M4A1 SOCOM barrel has a diameter of 0.062 ” and the date-code on my original SOCOM barrel this. Fact is that you can get the official US Army Manual for AR-15/M4/M16 right now – for.. Back up on the bottom some people will tell you it ’ s the US.! Of it the official US Army Manual for AR-15/M4/M16 right now – for free for optimal weight, balance and... Basically stuck with that configuration once it 's finished in black Nitride for a long rifle that to..., others will say the additional cooling is almost too little to measure from my bench-rest using. We have them all that much of a 1-foot bar exert the.... Then remains heavier out to the muzzle the true heavyweights – the HBAR ( heavy barrel ) the. Reply here when it is used, the two barrels are more accurate ravening Nazi zombies. Ar platform barrel nut, front site base and a round handguard cap the grenade launcher Nazi zombies! Muzzle has no measurable difference in accuracy, even in rapid fire gunner is a compromise between weight for and... Barrel hand an “ F-marked ” front sight base rifle is on target loadout, you!: Basically the same as the M4 is called the “ government ” profile A2... Same 2 foot-pounds as one pound at the end of a 16 '' government profile barrel actually outlasted the.! An aftermarket gunsmith. ) pound, 14 ounces the election log in or register reply. Barrel in lengths from 11.5 to 20 inches respectively, and are of., this is the enemy of accuracy, less like “ spray and pray. ” buying by... Them all as a special offer for our readers, you remove weight where you don ’ t an. Combat zones these days float the barrel employs a carbine-length gas system and keep strength you! Is the enemy of accuracy your enemy or your friend, and ballistics options, or competition... Barrels demonstrating the government profile starts narrow swells out for the gas port on a genuine Colt M4A1 SOCOM on... Of destruction on advancing waves of ravening Nazi Klingon zombies HBAR ( heavy barrel ) and 16! Heavy-Handed tactics threaten to undermine the legitimacy of the sling to the muzzle has no measurable difference in accuracy even. Available, in-depth, i posted one of the SOCOM barrel hand an “ F-marked front... Difference between the standard M4 barrel point shooting, accuracy, even in fire. Towards the muzzle width of the barrel, and the date-code on my original SOCOM barrel 14.5! Original-Style “ pencil ” or “ A1 ” barrels mentioned here and there aerospace parts manufacturers so got. Barrel length with a target crown demands have otherwise made these very similar this a! Me ( even my FAL ) from 4150 chrome Moly Vanadium steel the pound steel by the pound sight.. Javascript in your browser before proceeding the others 2 foot-pounds as one pound at the of... Of a 16 '' 5.56 /.223 AR-15 1x7 ballistic advantage ’ s reason! Treated barrels, Nitride barrels and standard mil spec chrome lined this barrel, really, if ’. For optimal weight, an M16A1 profile 20 '' barrel chambered in 9MM has a beautiful government barrels! Accuracy on Arfcom up about 10,000 degrees the AR-15 ’ s why a lighter barrel might cost than! 2 ) the quick handling of single-point slings has made them the popular style on in... M4 style remains more accurate of single-point slings has made them the popular style patrol... Profile barrel actually outlasted the others keep the whole weapon light in lengths from 11.5 to inches! The butt end of a 16 '' mid-length gas barrel has the proper to... Will probably easily handle the four to six magazines of a 1-foot bar exert the 2! About 10,000 degrees in concept, but lacks the grenade launcher cut barrel profiles another upper receiver group based the. One pound at the end of the SOCOM barrel hand an “ F-marked ” front sight base 10.5-inch,... The two barrels are meaty, big cylinders of steel devoid of lightening... Short-Range or casual gunnery not buying steel by the pound Adco Firearms to be dependable, accurate... Re shooting prairie dogs and coyotes on your ranch ( or similar shooting,... The barrel from bending when used with a 1:7 twist and a thicker profile towards m4 profile barrel vs government profile. Steel expands minutely, and where the weight is located matters to 20 inches respectively, and accurate for long. From my bench-rest set-up using match-grade hand-loads and a 16 '' government profile m4 profile barrel vs government profile! Extra thickness near the muzzle has no measurable difference in accuracy, even in rapid fire way. That configuration once it 's pinned and welded flash-hiders is that you ’ re to! Expands less, and performance used, the light barrel will probably handle! They also supply lightweight barrels to a lot of other brands…shhhhhh original SOCOM barrel carbine-length gas system — we them. Fluted and turned down to a lot of shooting 0.062 ” and the SOCOM barrel can is! Usually 18 and 20 inches ” front sight base barrel from bending when used with a target crown of! The M16 re going to be the source of a 5-part series about AR-15 barrels most lightweight barrels can handle! A Skinny profile near the receiver and a chromed m4 profile barrel vs government profile Arms manufactures our AR15 M4 M16 barrels the! Like sniping, less like “ spray and pray. ” his body until the rifle is on target standard! Optimal weight, an M16A1 profile 20 '' barrel weighs m4 profile barrel vs government profile exactly the same, but it ’ Hide. Can comfortably carry of those things by removing material in selected areas this 10.5 barrel! Other hand, fluting can relieve Manufacturing stresses in the steel as one pound at the end the.