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  BCM Standard 20" Rifle Length Barrel, Stripped

BCM 20" Rifle Length Barrel, Stripped
BCM 20" Rifle Length Barrels, Stripped.


 
List Price: $310.00
Our Price: $239.00

Stock Status:In Stock
Product Code: BCM-BRL-S-20 STD

Description
 
(.750) at Gas Block location
PLEASE NOTE: These batches can sell out quickly.
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Please check back with our website often. Sorry but we can not take pre-orders or backorders on these products.
Professional Grade Weaponry, by BCM
Made by Bravo Company MFG, Inc. (BCM) These Barreled Upper Receiver Groups are designed for shooting professionals with the Mil-Spec features for the demands of their duty.
These are stripped 20" Rifle Length Standard 11595E barrels with gas ports installed and dimpled for a strong gas block installation.
M4 Feed Ramp Barrel Extension
In developing the USGI M4 carbine as one of the primary weapons for todays infantry, some modifications were performed to the original M16 platform to enhance the reliability of the shorter barreled carbines. With the shorter carbine gas system and the increased gas port pressure, the carbine cycled faster, and at times the cycle rate could be faster than the magazine would feed ammunition. One of the modifications done to increase reliable feeding included enhancing the angle and the length of the feed ramps. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. This feature is offered on all BCM barrels.
USGI 1/7 Twist Rate
The USGI 1/7 twist rate of all of the BCM barrels is the preferred twist rate by most professional infantryman. This twist rate has proven very versatile and can effectively run the new heavier 5.56 ammo that is hugely popular with military and private security personal for its superior ballistics.
Mil-Spec Barrel Steel (Mil-B-11595E)
BCM barrel steel is Mil-Spec per MIL-B-11595E. This grade (CMV) of steel is a Mil-Spec steel used in the USGI M16 family of rifles; it is stronger and will last longer than the typical barrels offered in the commercial market. The Mil-Spec grade steel gets its additional strength and rigidity from an increase in carbon and/or vanadium in the alloy. This will offer increased barrel life and performance through use in all types of extreme environments and temperatures.
Chrome Bore and Chamber
One of the first modifications that were made to the original M16 in the mid 1960s was the addition of the chrome lined bore and chamber. It is now a world wide standard in the industry for a battle rifle. The chrome bore and chamber is harder than the barrel steel and on the USGI M16/M4 rifles will aid in chambering, extraction, and reliability. It increases velocity, and also resist against fouling and corrosion from extended use in the field. This gives the end user a longer barrel life with less required time in maintenance and cleaning.
Manganese Phosphate Barrel Finish
Barrels are parkerized with the manganese phosphate finish (Mil-Spec A-A-59267). Military specifications also state that the entire barrel surface is phosphate finished to create a porous surface to absorb oil as to resist against corrosion from the elements. BCM barrels are phosphated before installation of front sights. This is a much more extensive assembly operation, but insures that the entire barrel is finished and protected . . .even under the front sight base.
5.56 NATO Chambers
The USGI 5.56 NATO chamber is the best choice for effective deployment, reliability, and compatibility, of higher chamber pressures of military ammo.
Government Barrel Profiles
Duty rifles are built to be carried - day in and day out. 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 government profile barrel is also compatible with the current M203 mounting systems.
HPT / MP Inspected Barrels
Military specifications require that barrels undergo a HPT (High-Pressure Test) load as a part of quality assurance procedures. Commonly referred to as a proof load, the M197 HPT is rated for 70,000 psi. BCM barrels are proof loaded and then MPI (Magnetic Particle Inspected) to detect any possible flaws in the barrels surface. The barrels are MP inspected with both circular and longitudinal magnetic fields per ASTME1444-01 (current Mil-Spec) to assure a high quality finished product. All BCM barrels are marked HP MP as our proof load marking.
Copyright 2009 Bravo Company MFG, Inc.
Features
  • M4 Feed Ramp Barrel Extension (USGI)
  • USGI 1/7 Twist Rates
  • USGI 5.56 NATO Chambers
  • Mil-Spec 11595E - Barrel Steel (CMV)
  • Chrome Lined Bore and Chamber
  • Manganese Phosphate Barrel Finish
  • USGI Government Profile Barrels
  • HPT (High Pressure Test) Barrels
  • MPI (Magnetic Particle Inspected) Barrels


Average Customer Review: 5 of 5 | Total Reviews: 3 Write a review.

  1 of 1 people found the following review helpful:
 
BCM 20 inch Standard Barrel December 11, 2013
Reviewer: Geoff Larson from West Plains, MO United States  
I purchased one of these barrels for a build for a good friend. He may not get it!

At 50 yards, any two shots from 55 gr. blasting fodder will fit inside of a dime. The dimple for a setscrew-fitted gas block provided a perfect fit. Fit and finish were exactly per specs, and the barrel mated up with 4th tier supplier 'hog-feed' grade upper receiver and hand guard without any tweaking, filing, or hammering. I will DEFINITELY consider this barrel for any future builds.

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  4 of 4 people found the following review helpful:
 
Excellent January 25, 2012
Reviewer: Ken from West Valley City, UT United States  
This is a wonderful barrel at a great price.  The feedramps match my spikes receiver perfectly.  If you are in the market for a 20" barrel, you won't find a better product anywhere.

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  4 of 4 people found the following review helpful:
 
what a bargin July 6, 2010
Reviewer: thomas russell from durango, CO United States  
well done product, mine shoots minute of soda can at 100 yds with irons with 45 gr and 69 grain bullets. thank you BCM for filling a need for a rifle barrel at an affordable price. definitely look to you folks for my next barrel

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AR-15 Barrel Assemblies > 20" Rifle Barrel