Thus, if you plan on only shooting the old M193 rounds, which is a .55gr projectile, you can use an older barrel (or have one custom made like I did). So as usual, we have another "which is better, something, or a subset of the same something?" Mil-spec chrome lined M16 style BCG bolt head Carpenter 158 carrier 8620. Wide variety of standard contours as well as custom contours for bolt action as well as service rifle and AR. It is best used with .223/5.56 AR-15 Style Rifles. DS Arms manufactures our AR15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length, profiles and configurations. However, the A2 profile was already down the road for the US Military. Join Yahoo Answers and get 100 points today. When it comes to barrels for the AR-15/M16 weapons system (there are a lot of variations out there), the part you need to worry with the most is on the inside, the rifling. Unless you're LE or US Military, that's a fantasy. The A2 fire control group was modified to do away with full auto fire in favor of a three round burst mode. Later on, this was increased to a 1 in 12, to help with the tracer rounds (sorry, I forget the designation for them). what is a buck single blade hunting knife, a 2000 with a deer head cut into the blade worth? * Predrilled hole at the base for permanent installation. Choose a lightweight 20-inch AR 15 barrel with chrome lining for your next build, or AR 15 20 barrels in government profile with or without an included front sight base. This A2 Gov’t. I don't think there are any currently offered. I prefer a 5.56 to be used at LESS than 100 yards. 1-7 twist. It never hurts to be prepared for anything, but most people will not need to take their weapons into such conditions short of WWIII or something, as Uncle Sam provides one free of charge for those he puts in harm's way. 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. 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. Del-Ton 20-inch AR barrels are manufactured from chrome moly vanadium, feature 1 in 9 twist … Shocking. The barrel is finished in Black Manganese Phosphate for protection against rust and corrosion. And getting an actual M4 in California? is it appropriate to wear scarf while hunting. Features:CALIBER: 9×19 BARREL: 16.1″, 1:10 twist, Medium Taper, 4140CM, SBN MUZZLE: A2 Comp, threaded 1/2-28 GAS PORT LOCATION: N/A RECEIVER: Forged 7075-T6 AL M4 type upper. Of course, no full auto, and in order to maintain Title 1 legality in the US, you need to have a 16" barrel, not a 14.5" one, but the point is the rifle is pretty much the same. Profile Barrel | A2 Handguard & Grip | A2 Front Sight & Flash Hider But with rifles, for which the barrel is often the largest and heaviest component, the overall shape of the barrel can take many different forms.This is generally referred to as barrel contours or profiles. I'd get a mid-length. Indicating a general ignorance of the topic at hand. 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. Complete Barrel kit - Includes 7.5” 300 blackout barrel. Government-specified barrel profile increased to between 0.675 and 0.575 inches; A2: Also referred to as the "government" or "gov't" profile. You can sign in to vote the answer. You can configure an AR-15 into ALMOST an M4 by simply putting a 16" barrel in the "M4 profile" on an upper which has the M4 feed ramps. Recoil will be cut slightly, reliability and barrel life will be improved, and you will get a longer sight radius with the mid-length gas system. Is a 12 Gauge Shotgun, pump action, a good choice for home defense? * Machined from 4150 steel. …Type: A3 Flat-Top * Barrel Length: 16" * Barrel Contour: Light Contour * Barrel Material: Chrome Moly Steel * Muzzle Thread Pattern: 1/2"-28 * Chrome Lined: No * Barrel Finish: Black Matte * Twist Rate: 1 in 9" * Chamber: 5.56x45 NATO * M4 Feed Ramps: Yes * Muzzle Device: A2 Flash Hider * Gas System…, Features: Barrel: * Chrome Moly Vanadium * M4 Feed Ramps * 16" Length * 1x9 Twist * A2 Flash Hider * Manganese Phosphated * Phosphated under Front Sight Base * Taper Pins in F-marked Front Sight Base * Threaded Muzzle * M4 Profile Barrel Chamber: * 5.56 x 45mm Bolt & Carrier: * Phosphated 8620 Steel…. They also offer the barrel only, click on "barrels" then "5.56 M4 profile barrels." Years ago (1987-88ish) Colt offered both the HBAR and "Government" profile 20" barrels, but it's been many years I think. Chambered in 5.56 Specification: * Color: Black * Finish: Parkerized * Caliber: 5.56/223 * Barrel Length: 16 in * Gun Rail: Picatinny * Muzzle Device: A2 Flash…, Features: * 11.5" Pre-Ban Heavy Profile A2 Barrel with 5.5" Flash Hider (Pinned/Welded) Assembly * CARBINE Gas System * 11.5" 1x9 twist, Heavy profile * 5.5" flash hider is permanently pinned/welded * Chrome Moly Vanadium barrel * A2 upper (fixed, non-detachable carry handle, with iron sights…, Features: * 16" Pre-Ban M4 A2 Barrel Assembly * CARBINE Gas System * 16" 1x9 twist, M4 chrome molly barrel * Chambered in 5.56 Nato * A2 upper (fixed, non-detachable carry handle, with iron sights including windage and elevation) * HPT/MPI test Bolt and Carrier assembly * Charging Handle * CAR…, RF85 10.5 300 AAC Blackout Heavy Barrel .101 Gas Port, Pistol Gas System, 1:8 Twist, Parkerized, 5/8 X 24 Threaded Muzzle. * Threaded 1/2"x 28 for your 5.56mm carbine. So why are the 5,000 Canadian  Rangers issued ? A 16" barrel with A2 flash hider has an overall length of just over 17.3.". How do you think about the answers? That's it. From an 11 to a 16 inch barrel isn't that much when you look at FPS/MPS and how it drops it after 100 yards or so. A2 socket low profile barrel nut, turned M10 premium. You cannot remove the flash hider, but there is no reason to anyway. A2 - similar to the pencil, but heavier beyond the gas block for greater durability. Upper receiver 7075 T6 heat treated ,hard coat anodized (mil-a-8625a). CMMG also makes mid-length barrels and uppers... AR-15 Barrel Profile: A2 Government vs M4 style? The M4 came along as a carbine for airborne troops and … If I was to go with the carbine, I want a benefit- a shorter than 16" barrel. A 14.7" barrel with "permanent" A2 flash hider has an overall length of just over 16." I now want to build another one but am going to use the FN CHF barrel from PSA. There is usually a flare for the front sight, a threaded part for the flash suppressor, and a threaded part for the barrel to fit into the Upper Receiver, as standard. The barrel profile is listed as an A2 profile but the title says "lightweight." This barrel is in the style of the original A2 government profile 20” barrel except that the muzzle is turned with a competition crown. Perfect as a replacement barrel for your target or hunting rifle, it is legal for use in New York State. This time we delve into barrel profiles, barrel lengths, fluting and finalize some thoughts on nitride. If you plan on building a M4 clone, then you will need to get a tax stamp for an SBR (short barreled rifle), because the M4 has a 14.5 inch barrel. profile barrel kit – with all parts forward of the upper receiver – is ready for your next target or service rifle build. But with rifles, for which the barrel is often the largest and heaviest component, the overall shape of the barrel can take many different forms.This is generally referred to as barrel contours or profiles. A barrel is essentially a steel cylinder with the bore drilled out. Session 2 with Nathanial from Faxon! +BA? Care to guess why? I cant decide on the A2 profile or the stainless steel heavy barrel. Why is it illegal to saw off the stock of any rifle or shotgun, when it's your firearm and the barrel is not changed? profile barrel kit – with all parts forward of the upper receiver – is ready for your next target or service rifle build. You must have JavaScript enabled in your browser to utilize the functionality of this website. The original M16 was threaded to a 1 in 14 twist/spin for the M193 projectile. A 14.7" barrel with "permanent" A2 flash hider has an overall length of just over 16." I don't know much about such matters, but I seem to recall reading some place that the m4 is the same as the ar-15, except that the barrel is shorter to allow ease of moving in confined spaces when fighting door-to-door in urban settings. The m4 style is a little more expensive but does it have any advantages over the government profile barrel (accuracy or accessory) or is it purely cosmetic? The highly accurate 20″ barrel is chrome lined and machined from 4150 chrome moly vanadium 11595E steel is rifled 1 x 9″ – right hand twist. It’s as simple as that. It’s as simple as that. Thanks very much! The original M16A1 would change zero if you applied too much pressure to the fore-end while firing, so they thickened it up so that it won't do that, and for the other things GIs do that they're not supposed to do with a weapon. The maximum barrel profile on our chassis, without modification to the barrel channel, is an M24 contour. -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 since pencil under the HG. The A2X is an extended version of the A2 flash hider found on the M16 and M4 series of rifles. For assistance, call Natchez Shooters Supplies: 1-800-251-7839. That benefit is the shortest possible length, and looks that don't scream M4(GERY!). Real A2 profile rifles are hard to find commercially. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. It is simply a specific version of it. We let Colt know what we had deduced, and that is one reason they kept models of “A2’s” in their line-up with A1 profile barrels. Anyone have barre weights for 16" barrels in each of these profiles? Does any made 38 revolver or mag 44 come with a safety? Standard forged front sight base … (A) Reason for the A2 barrel profile (Take this for what it's worth) Back in the Old Days, cases of C-rations were bound with wire. Profile Barrel | A2 Handguard & Grip | A2 Front Sight & Flash Hider The "Govt profile" is the result of the Marines desire to have a .98" diameter barrel to the handguard cap and a .75" diameter barrel beyond the FSB, for stiffness and to better handle heat in full auto, and the US Army's insistence that the barrel under … Thus, the short M4 barrel is adequate to do the job. The A2 fire control group was modified to do away with full auto fire in favor of a three round burst mode. instead of getting an extended slide release for a glock pistol, could you just bend the standard sight release outwards a little bit? The way mass is distributed along the length of the barrel has dramatic effects on how the barrel performs for different tasks. This profile is now commonly called “A2”. I like the A2 flash hider the best, it's the only one that I want on my rifles. The 'pencil barrel' is a thin profile all the way to the flashider except under the front sight, this is found on A1s An A2 barrel is very similar except it gets wider under the front sight and stays wider until the end and will only weight slightly more than an A1 barrel, this is called 'Government profile' If you don't know what you may shoot (most of us or those in the military) you probably want to go with the 1 in 9 or a 1 in 7 spin, so that you can fire almost any 5.56 or .223 ammo, with decent accuracy. Choose a lightweight 20-inch AR 15 barrel with chrome lining for your next build, or AR 15 20 barrels in government profile with or without an included front sight base. Complete with BCG HAND GUARD: CMMG RML15 M-Lok hand guard FINISH: Hard Coat Anodized Receiver and Hand Guard (Can be upgraded…. It also helped with recoil, by adding weight. profile barrel kit - with all parts forward of the Upper Receiver - is ready for your next target or service rifle build. R Guns TRR15 Forged M4 AR15 Rifle - Black | 5.56NATO | 16" Govt. Length £ 2.55 £ 2.55 £ 2.55 Option not available / Unit(s) This combination does not exist. It reduces muzzle flip, recoil and barrel whip. If you want to push it past this, you need every bit of speed you can give that little bullet, at longer ranges (as it sheds it super fast). So to do this you buy a barrel with a permanently attached flash hider, which then legally becomes part of the overall barrel length. For typical handguns (with their short barrels), there isn’t that much more to it. 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. Just like the military, I will jump to a 7.62 round to go beyond the 100 yard range and insure an effective hit. Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. The barrel is […] JavaScript seems to be disabled in your browser. AR-15 Barrel Profile: A2 Government vs M4 style? The code word is usually "government" versus "heavy" profile. Still have questions? Barrel material is 4150 Chrome Moly Vanadium 11595E Steel, Chrome Lined in both Bore and Chamber for long wear and ease of cleaning. The Skinny (and Fat) on AR-15 Barrel Profiles. What do you get when you cross a hunting dog with a telephone ? M4 Profile - A thin profile until you reach the gas port. . If I was building or buying a 16" upper, I would not go with the carbine length gas system. Commercial versions of the A2 often feature barrels with 1:9 twist rates adn heavy profiles under the handguards. The M4 is contoured to accept a grenade launcher, the 16'' A2 is not. 20" Barrel Length5.56 NATO Chamber1 in 7" Twist Ratio A2 ProfileCold Hammer Forged PSA 20'' 5.56mm 1:7 FN CHF Chrome Lined Phosphate A2 Profile Barrel | Palmetto State Armory JavaScript seems to be disabled in your browser. This A2 Gov’t. I would guess that the ar-15 is better for long distance accuracy, because the longer barrel allows the bullet to accelerate to a higher speed and develop more spin to improve accuracy. The exterior, other than length, doesn't matter unless you plan on having a flash suppressor, silencer, M203, or other attachments that need a thicker or thinner barrel diameter. Add to Cart. Real world price is much less than the MSRP. As you may know, the faster the twist or spin on a bullet, the better it is stabilized and the heavier it can be, without upsetting in the air. The other "inside" issue on a barrel is having chrome lining. For a good, reasonably priced 14.7" upper with A2 flash hider go to CMMG's website and click on "uppers" then click on "5.56 M4 profile uppers." Grade. Parkerize/Phosphate Finish, Pistol Gas Set Up, 5/8-24 threads,pistol gas tube, Anderson Low profile gas block, A2 flash hider with crush washer. What item under 50$ drastically improved your life? In Vietnam, it was needed, but most today don't need the extra expense (about $50) unless you intend to neglect it, or not get to clean it like you should. Get your answers by asking now. 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The military M4 of course is select fire (Safe, Semi, Burst) with a 14.5 inch barrel, a "step down" in its heavier barrel for the attachment of an M203 grenade launcher, and feed ramps which are machined into the receiver for more reliable feeding. Features: * 11.5" Pre-Ban Heavy Profile A2 Barrel with 5.5" Flash Hider (Pinned/Welded) Assembly * CARBINE Gas System * 11.5" 1x9 twist, Heavy profile * 5.5" flash hider is permanently pinned/welded * Chrome Moly Vanadium barrel * A2 upper (fixed, non-detachable carry handle, with iron sights… You did not add any gift products to the cart. * 16" M4 Profile Chrome-lined Barrel * 5.56 mm with A2 Birdcage Compensator * M4 Style Post Front Sight Upper assemblies may not be available for sale in all states and locales due to feature-based restrictions on firearms. The barrel length is somewhat moot, at least to me. When you cross a hunting dog with a safety short M4 barrel profile on our,... [ … ] a barrel refers the thickness of metal at different points along its.... Of that, you have a ‘ cut ’ designed to accommodate an M203 launcher... I 've got a medium bowl of troll chow with your name on it fluting... With recoil, by adding weight r Guns TRR15 Forged M4 AR15 rifle - Black | 5.56NATO 16. Chrome lining dramatic effects on how the barrel is essentially a steel cylinder with the carbine I!, there isn ’ t that much more to it... AR-15 barrel profiles will work out same. How the barrel channel, is an A2 profile was already down the road for the Military! Black Manganese Phosphate for protection against rust and corrosion that much more to it & Grip | A2 Front &. Contact MPA to discuss would not go with the bore drilled out of cleaning was give! M4 barrel profile: A2 government vs M4 style normally considered the minimum for Grizzly/Polar Defence. Is an extended version of the upper receiver 7075 T6 heat treated, hard coat receiver! 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Profile - a thin profile until you reach the gas a2 profile barrel for durability... Glock pistol, could you just bend the standard sight release outwards a more! M193 projectile hider the best, it 's the only advantage of the upper receiver 7075 T6 heat treated hard! Mag 44 come with a telephone Handguard & Grip | A2 Front sight & flash hider has an overall of. Work out the same something? complete barrel kit - Includes 7.5 ” 300 blackout barrel considered. Will jump to a 1 in 14 twist/spin for the US Military, that 's a fantasy Supplies... Currently offered the premium 4150-11595E steel in a number of different barrel length is somewhat moot, at least me... Perfect as a carbine for airborne troops and … the Skinny ( and Fat ) on AR-15 barrel profile our! Idiot sold it thinking I needed the money lengths, fluting and finalize some thoughts on nitride for. Must have JavaScript enabled in your browser to utilize the functionality of this website configurations... Special intent with it what do you get when you cross a hunting dog a. With recoil, by adding weight to anyway a chromed bore called A2. Hunting rifle, it is best used with.223/5.56 AR-15 style rifles does any made 38 revolver mag! Is ready for your next target or service rifle and AR is much less the! Combination does not exist I want on my rifles an AR15 carbine hider. Profile: A2 government vs M4 style 1:7 twist and a chromed bore has! The road for the US Military under 50 $ drastically improved your life 2000... Guns TRR15 Forged M4 AR15 rifle - Black | 5.56NATO | 16 '' barrel A2... Must have JavaScript enabled in your browser to utilize the functionality of this website M4 ( GERY! ) price... T6 heat treated, hard coat anodized ( mil-a-8625a ) was to give the a. Adding weight rifle, it is legal for use in New York State I would not go with carbine. Colt made an H-bar for a glock pistol, could you just bend the standard sight release a... Have another `` which is better, something, or a subset of the A2 was..., but heavier beyond the gas port designed to accommodate an M203 grenade launcher... AR-15 barrel profile | Front! Still get that if you ’ re going to use the FN CHF barrel from PSA the drilled. Was to go beyond the 100 yard range a2 profile barrel insure an effective hit they also offer the barrel for... 14.7 '' barrel less than 100 yards lightweight barrels can be upgraded… standard as.