BCM® Standard 11.5" (Enhanced Lightweight) Carbine Upper Receiver Group w/ MCMR-10 Handguard

MSRP: $873.35
Your Price: $675.35
(You save $198.00 )
(32 reviews) Write a Review
5.56 NATO
Barrel Length:
Barrel Style:
Barrel Profile:
Enhanced Light-Weight
Stock Status:

Out of stock

All BCM® Upper Receiver Groups with a MCMR Handguard Include:

  • One 3" Picatinny Rail Section
  • One BCM MCMR Sling Mount
Bravo Company builds:  Life Saving Tools™
Manufactured by Bravo Company MFG, Inc. (BCM)
These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians 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 and Upper 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 upper receivers 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, private security personal, and personal defense for its' superior ballistics.
Mil-Spec Barrel Steel (Certified Mil-B-11595E)
BCM barrel steel is Mil-Spec per MIL-B-11595E, and is independently certified. 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. This 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 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 or high quality personal defense ammounition. 

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 2019 Bravo Company MFG, Inc.
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

32 Reviews

Write a Review
  • 5
    Superior Quality Upper

    Posted by JBW on May 8th 2019

    This was my second purchase of a BCM upper with BCG. The quality is second to none. Very fast shipping as well. Highly recommend Bravo Company USA to anyone who appreciates superior quality products and great service.

  • 5
    11.5 inch mlok

    Posted by Wild on May 8th 2019

    Just awesome. Total quality. Fast shipping. Plus I loved all the extra goodies including in the box!! Will be a repeat customer for sure! Thanks BCM.

  • 5
    My favorite upper

    Posted by Mark on Apr 14th 2019

    I spent forever researching uppers for my pistol/SBR build and I am 100% satisfied with this upper. It’s absolutely perfect for a dedicated suppressed gun. BCMs quality and customer service are second to none.

  • 5
    Lightweight, superb finish, accurate

    Posted by Mike W on Apr 14th 2019

    Truly excellent fit and finish. Extremely happy with this upper. Lightweight MCMR rail is very comfortable to grip and doesn't heat up as much as it appears it would.

    Highly recommended.

  • 5
    Lightweight and super build quality

    Posted by VF1777 on Apr 14th 2019

    Another great upper from BCM. They earn their superior reputation with every order.

  • 4
    Disappointing tax handling

    Posted by Tedford Eads on Apr 14th 2019

    The product itself seems fine but the handling of taxes on the order was disappointing. You charged me for municipal taxes when in fact I do not live inside the city limits. When I buy a car the tag agency does not charge me municipal taxes because I don't live within the municipality. When I order online from Amazon they collect the state/county but they don't charge me municipal. By arbitrarily treating everyone in a given zip code as if they live in the city you basically charged me for taxes I don't really owe.

  • 5
    The best quality

    Posted by Bob on Apr 14th 2019

    I carry this upper on duty as a police officer. Wouldn't hesitate to trust my life to anything BCM.

  • 5
    11.5 light weight upper.

    Posted by Brian on Apr 14th 2019

    Loved this upper. Shot great supressed and unsupressed. Great experience buying as well, i think it was delivered in 2 days. Great value, great service.

  • 5
    Pure awesomeness

    Posted by Guy Gardner on Apr 10th 2019

    This gun meets all my expectations for a serious work gun. The quality and detail on the gun are flawless.