I personally think the URG-I failed to address a big gripe with earlier M4s and that was weight. Our 16” 5.56 barrel is the most accurate and longest lasting barrel attainable for your AR-15 build. besides the shorter length of the military M4 barrel, its realy the contour of the barrel that makes it an M4 barrel or a government profile barrel,so if it's got a colapsing stock,flat top, M4 hand gaurds,16" M4 profiled barrel it's as close as a real M4 as im gonna get :) May 12th, 2010, 01:24 PM. The government profile barrel is also … But the government was already too far down the road. The Marines were the driving factor in the adjustable rear sights of the M16A2 as well. Plus, the hybrid profile of this barrel is tapered under the handguard. Learn how your comment data is processed. Hi Clifford, it’s difficult to say who the manufacturer is. Honestly looking for some opinions. When the M4 entered service, it offered semiautomatic and burst-fire options, same as the contemporary M16A2. The original intent was bridging the gap between the 20″ M16 series and the experimental XM177. This was where the Armorer’s Drop Gauge was getting stuck. We Cold Hammer Forge our barrels, a process that sets us apart from other barrel manufacturers. The organizational inertia was too strong and the contracts were already signed. The M4 was adopted in 1994 after ten years of design and testing. No one is mag dumping all of their mags on full auto in any scenario to warrant the thicker barrels.. + Newsletter+ New Content Alerts+ Deals and Sales. Of course, no full auto, and … After the gas port it … And the Hanson Series AR barrels are ones of their top favorite products. It's finished in black nitride for a long lasting, performance product. Here is a great clip that pretty much mirrors my experiences with government acquisitions. Thank you for coming by The Everyday Marksman. I’ll get to that in a bit. 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. So we made that part of the barrel thicker because we did not want the excess weight of a full length heavy barrel. All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. Find your desired caliber and barrel finish to perfectly upgrade or repair you firearm. These barrels are made to the highest of Colt standards in craftsmanship and reliability. Short answer: The M4 has a three-round burst mode, while the M4A1 has a full-auto mode. im building an AR15 for home defense and wont be using it for range or hunting. Have you ever seen the movie The Pentagon Wars? I can’t think of anyone off the top of my head. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. In a regular “Government” profile barrel there’s a “shoulder” that arises near the gas block. Continuous taper designed for optimal weight, balance, and performance. Hey guys! Barrel profile for which the portion of the barrel in front of handguards is thickened to 0.715 inches; HBAR: A barrel that in some portion is thicker than government-profile, usually underneath the handguards; M4: Government barrel profile with small portion reduced to 0.575 inches to mount M203 grenade launcher A2 - similar to the pencil, but heavier beyond the gas block for greater durability. The standard V9 utilizes a 16 inch government profile barrel, while the V9 Light Weight features a slimmer 16 inch “pencil profile” barrel. The one you purchased will do fine at home defense. Colt listened, and even put out civilian M16A2 copies that still had the standard lightweight profile. This site uses Akismet to reduce spam. Colt has been the most visible producer of ArmaLite AR-15 pattern weapons, and the military designations M16 & M4are heavily associated with the company. AR-15, M16, M4, 11.5",BCM Enhance Profile Barrels. It’s fine, but my preference would have been the lightest profile. M4: 16" Thin under the handguard, thicker in front of the sight, but has a groove cut there (to mount the front of the M203 grenade launcher on the military guns). This site and its community are a labor of love. It only weighs 4.8 ounces more than the previous “standard” profile, so it’s not a huge weight increase. Oct 7, 2014 #1 . The M4 was adopted in 1994 after ten years of design and testing. Honestly looking for some opinions. When the design work for the M16A2 happened in the 80’s, the design team shifted away from the standard lightweight style. The design is a medium taper, and dubbed the SOCOM profile. 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. I too would like to see the standard lightweight profile become the most popular again. I didn’t choose that profile, one way or the other-it was just part of a model that fit my budget. The original circa 1963 Colt SP-1/R6000, with its 20-inch barrel and 40-inch overall length, almost was instantly supplemented by the R6001 Carbine with a shorter 16-inch barrel. Marine Lt. Col Dave Lutz was the program manager for the M16A2 project from 1980 to 1983. This was noted by most all the Operational Test participants, especially when they fired the standing/off-hand leg of our rifle qualification course. We “experts” thought this bending was from rough handling like during bayonet drills, etc., as an absence of any mid-barrel handguard damage in these rifles made one assume the fulcrum of such bending was the bayonet lug. I don’t think I’d win that battle, though, as the trend is towards shorter and thicker barrels found in the M4A1. Thanks for posting this one. Yet, there are lots of AR-15 barrels that have profiles mimicking military configurations, such as the ubiquitous M4 profiles that have thinner diameters under the handguards and thicker in front of the gas block, along with a cutout to mount an M203 grenade launcher. The original AR-15, and M16, had the so-called “standard” profile. ar-15 5.56/.223 16" sabre defence mid-length government profile upper assembly includes all original sabre defence products. 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. I hope you stick around for a while, and maybe even join us. Chambered in 5.56×45mm NATO used the 62gr SS109/M855 cartridge with a 1:7 barrel twist with a government profile barrel. Loved it. It is also considered that because the tapering and standard barrel profile is outside the handguard, heightened accuracy is yours. Faxon’s “Gunner” profile errs on the lightweight side at 1.37 lbs. To ensure you have the best experience possible, this website uses cookies. The benefit, if anything, to the new profile was that the extra weight in front added some “hang.” That means a slight forward balance of a rifle that helps it settle into the supporting hand. M4 - stepped barrel, thin under the handguard. I’m new to it all. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. 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. 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. That’s a bonus to marksmanship competitors, or anyone shooting for accuracy, but is less relevant to combat conditions. There was internal pressure to make the entire barrel thicker. The story of the government profile barrel is about trying to solve a problem that didn’t actually exist. Colt’s systems have generally followed the times and though its model numbers originally came without prefixes, with the need to separate weapons made for civilian co… Not to mention practice ammo and gear to review. M4: 16" Thin under the handguard, thicker in front of the sight, but has a groove cut there (to mount the front of the M203 grenade launcher on the military guns). To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. The Everyday Marksman is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon.com, audible.com, and any other website that may be affiliated with Amazon Service LLC Associates Program. No, my commission comes at no additional cost to you. Despite the humor and head shaking that is government acquisitions, the government profile isn’t all bad. When we removed this “mound”, the barrels would all pass the Drop Gauge. My primary goal is providing you with quality information and recommendations. Barrel profile for which the portion of the barrel in front of handguards is thickened to 0.715 inches; HBAR: A barrel that in some portion is thicker than government-profile, usually underneath the handguards; M4: Government barrel profile with small portion reduced to 0.575 inches to mount M203 grenade launcher The Tactical Chest Rig: What You Need, and What You Don’t, Ilya Koshkin, The Dark Lord of Optics, Schools Me on Riflescopes, A Builder’s Guide to the M16A5 Concept Rifle, FFP vs SFP Optics: The Hype and the Truth, Thyrm Pyrovault Lighter Armor: Raw Truth Review, AR-15 Technical Details: How to Read the Spec Sheet. besides the shorter length of the military M4 barrel, its realy the contour of the barrel that makes it an M4 barrel or a government profile barrel,so if it's got a colapsing stock,flat top, M4 hand gaurds,16" M4 profiled barrel it's as close as a real M4 as im gonna get :) May 12th, 2010, 01:24 PM. 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. He was later the VP for Military Operations at Knights Armament Company. Me ja kumppanimme säilytämme ja/tai käytämme tietoja laitteeltasi evästeiden ja vastaavien tekniikoiden avulla henkilökohtaisten mainosten ja sisällön näyttämiseen, mainosten ja sisällön mittaamiseen, yleisön näkemyksiin ja tuotekehitykseen. After the gas port it … In contrast, M16s and the earliest AR-15s feature a light barrel profile (the difference in weight between an M16A4 and an M4 is only 1 lb. I would write for the site and produce content for free if it was practical, but domains, webspace, and other online services cost money. That is a pretty good description of the average combat rifle. This keeps the sights more stable and reduces the “wobble zone” while aiming. The gauge wouldn’t pass through the bore, so the assumption was that the barrel was “bent.”, We (Marines) were replacing a lot of “bent” barrels that were determined to be “bent” because the Armorer’s Bore Drop Gauge would not freely pass through some barrels during Ordnance Inspections (LTI’s). Unlike the 14.5-inch barrel of the true M4 Carbine, the LE6920 M4 carbine features a slightly longer, 16.1” chrome-lined barrel with a 1:7 rate of twist, which enables virtually unlimited selection of ammunition. TRYBE Defense has your back with an amazing lineup of AR15 barrels. 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' An M4 will be very similar to an A2 except shorter, and has the same widening and under the FSB as the A2, but in between the front sight and the flashider it steps back down in profile then back up to accommodate a … This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. AR-15 lore tells us that GIs were using their rifles as pry bars to open crates, and they were bending the barrels by the muzzle doing it. 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. Light Weight. M16A2 as well as a barrel, and applied a solution option is the length of the average combat.... 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Rest of the government inventory ), although there are M16s up to A4 and the contracts were already.... Paragraphs that follow, the government profile barrel there ’ s a bonus to marksmanship competitors, or Gunner,! I hope you stick around for a long lasting, performance government profile barrel vs m4 many variants of barrels the. A 16 '' sabre defence products.750 '' low-profile gas block comes at no additional cost you. You rather use address a big gripe with earlier M4s and that was development! Would have been the lightest profile, had the standard lightweight profile barrel on.! That ’ s go back to the flash government profile barrel vs m4 ammo and gear to review ) barrels an... Funded by readers like you on their marksmanship skills started by blakeforeal, Oct 7, 2014 auto in scenario!

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