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  BCM Standard 16" Mid Length Upper Receiver Group

BCM 16" Mid Length Upper Receiver Group
BCM 16" Mid Length Upper Receiver Group

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List Price: $539.00
Our Price: $439.00
You save $100.00!

Stock Status:In Stock
Product Code: BCM-URG-MID-16

Bolt Carrier Group and Charging Handle Package

BCG and Charging Handle Package*:
Handguard Selection

Select a Drop-In Handguard:
Muzzle Device


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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. They are fully assembled, headspaced, and test fired.
As a note: BCM® barrel components are parkerized separately before assembly. Prior to shipping, all BCM® upper receiver groups are test fired for function, laser bore sighted with a Milspec carry handle for sight alignment within Mil-Specs, and then batch samples are test fired for accuracy. As such, the upper receiver group will show handling marks consistent with these quality control procedures.

M4 Feed Ramp Barrel Extension (USGI)
M4 Feed Ramp Flat Top Receiver
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 uppers and all BCM barrels.
T-Marked Upper Receiver
The contemporary M16/M4 rifle is built around the concept of modularity. All of the BCM flat top uppers feature a USGI type laser etched T-marks to provide addressing for the remounting of tactical accessories such as optics, laser sights, etc. This enables the weapon platform to be easily configured and then accurately reconfigured for each specific mission.
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 11595E - Barrel Steel
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.
Mil-Spec F-Marked Forged Front Sight Bases
Mil-Spec for rifles issued to the troops require taller front sight bases on all flat top AR rifles. Many commercial offerings use M16A2 height front sight bases on all of their barrels regardless of what type of upper it is installed on. As a result, owners of rifles and carbines with the flat top receiver configuration can have problems getting a proper 'zero' for elevation with Mil-Spec back up iron sights. As all of the BCM uppers are built for flat top uppers, all have the proper Mil-Spec F marked front sight base to insure the correct height for iron sight zeroing when using military iron sights. Mil-Spec taper pins secure the forged front sight base with the sling swivel secured by tubular rivets.
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 © 2005 - 2012 Bravo Company MFG, Inc.
  • M4 Feed Ramp Barrel Extension
  • M4 Feed Ramp Flat Top Receiver
  • T-Marked Upper Receivers
  • USGI 1/7 Twist Rates
  • USGI 5.56 NATO Chambers
  • Mil-Spec 11595E - Certified Barrel Steel (CMV)
  • Chrome Lined Bore and Chamber
  • Manganese Phosphate Barrel Finish
  • Mil-Spec F-Marked Forged Front Sights
  • USGI Government Profile Barrels
  • HPT (High Pressure Test) Barrels
  • MPI (Magnetic Particle Inspected) Barrels

Average Customer Review: 5 of 5 | Total Reviews: 74 Write a review.

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  0 of 0 people found the following review helpful:
You get what you pay for November 14, 2015
Reviewer: Anonymous Person from FL  
A little pricey after you factor in the BCG, charging handle, rear sight and handguard, but the quality is through the roof. If you're building a range toy, there are cheaper options out there. If you're building a fighting rifle, you want serious quality and BCM does NOT disappoint. I wouldn't trust my life to anything less.

There's only one minor annoyance, and that is the ridiculously stiff delta ring, but it's nothing you can't muscle through with a second set of hands.

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  0 of 0 people found the following review helpful:
Great deal and product made even better! November 11, 2015
Reviewer: brothersinarms from alpharetta, GA United States  
First....ordered wed am and it arrived friday am. From Wi. to Ga., in all the friggin snowstorms going on! That blows me away. Second.....$439 included upper, bcg, and mod 0 comp....thats $700 worth of product folks! Not to mention the killer freebies. Extremely generous of you bcm folks! Boxed up very well, and the quality is by far the nicest i have owned. I am proud to support bcm, as a former marine myself, but the reputation you folks have is no joke. Now i know why. I thank you bcm.....keep up the great work....you all have earned a very loyal new customer. Semper Fi

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  0 of 0 people found the following review helpful:
perfect November 11, 2015
Reviewer: zack MARRS from DICKINSON, TX United States  
When i got it, a ripped open the box, and that sweet, sweet aroma let me know i had, in my hands, one of the best ar15 uppers one could buy

Several thousand rounds downrange, cleaned every 1000 rounds, not a single jam, you can't beat bcm

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  2 of 2 people found the following review helpful:
Bravo! It was a great deal. November 11, 2015
Reviewer: T.B from San Francisco, CA United States  
I purchased this BCM upper receiver for $439, I received a free BCM bolt carrier group, free BCM hat, and free BCM gunfighter stickers. It was well packaging and shipping took about 5 days for me. I would buy BCM stuff for my next build.

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  0 of 0 people found the following review helpful:
Awesome products! November 11, 2015
Reviewer: Jason Gallardo from temple city, CA United States  
This is my second upper and I couldn't be happier. Fit and finish is excellent. Shoots great, thinking about buying another one. Thanks BCM!

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