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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

(.750) at Gas Block location
Approximate Weight: 2lbs 1oz.
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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 today’s 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 1960’s was the addition of the chrome lined bore and chamber. It is now a worldwide 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.
  • 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: 6 Write a review.

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  1 of 1 people found the following review helpful:
Great barrel November 11, 2015
Reviewer: Gary Patterson from Georgia  
I purchased this barrel over a year ago.  So far, it's proven to be very accurate in all bullet weights I've tried:  55gr, 62gr, 63gr, 69gr, 75gr, and 77gr.  

I'm still amazed at the low price compared to other barrels on the market.  It's perhaps the best bang for your buck barrel out there.

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  0 of 0 people found the following review helpful:
20" rifle length barrel,stripped November 11, 2015
Reviewer: Anonymous Person from MacDill, FL United States  
Excellent barrel(I hand lapped) for custom builders who want to add their own products like i did with a GG&G flip up gas block/Yankee Hill free float hand guard/Young Machine national match auto bolt carrier and bolt(chromed)/BCM flat top reciever(M4 feed ramps).Using M262 mod1 ammo 800 meter hits are normal with great effect!. A must for long range hill to hill shots! I recomend this great product know doubt at all. Keeps on going and going. Kills jihad on contact!

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  2 of 2 people found the following review helpful:
Awesome Barrel April 30, 2014
Reviewer: Anonymous Person from Brunswick, OH United States  
Now I know why BCM is usually sold out of this barrel. This is a great barrel. I have this barrel mounted to a BCM upper receiver, BCM BCG with a Yankee Hill folding front sight gas block. So far, I have tried Federal 55gr. Bulk Pack, American Eagle 55gr. Bulk Pack, Israeli 62gr. Milsurp and Wolf 62gr. ammunition.  This barrel ate everything I fed it without any problems. I still can’t believe how well the cheap wolf ammunition grouped with this barrel. I would recommend this barrel to anybody.

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  2 of 2 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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AR-15 Barrel Assemblies > 20" Rifle Barrels