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

MSRP: $948.35
Your Price: $725.35
(You save $223.00 )
Maximum Purchase:
10 units
5.56 NATO
Barrel Length:
Barrel Style:
Barrel Profile:
Enhanced Light-Weight
Stock Status:

Out of stock

About the BCM® Standard 11.5" ELW Carbine Complete Upper Receiver w/ MCMR-10 Handguard

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

  • One 3" Picatinny Rail Section
  • One BCM MCMR Sling Mount

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.

Shop Related Products:

Want to see more upper receivers? Click the links below to view more BCM® AR complete uppers!


Bravo Company builds: Life Saving Tools™
Copyright 2023 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.***

63 Reviews

  • 5

    Just wrapped up a baer course with this, super light, super reliable, super awesome.

  • 5
    Just want I was looking for

    Perfect size and weight for my SBR.

  • 5
    11.5 “ Upper receiver

    The upper was shipped quickly and arrived on perfect condition. Great quality as expected.

  • 5
    Customer review

    Review body is empty

  • 5

    The quality of this build is superb, expect nothing less from BCM. Truly a product you can stand behind and trust with your life.

  • 5
    Excellent Service & Product

    The product was shipped very fast, and packaged very well. I did have some questions and the email response was great - several back and forth responses in the course of a couple of hours. Very satisfied and would definitely recommend to others.

  • 5
    Perfect, but that's what I expected.

    It's exactly what you expect from BCM, honestly. Built to spec, perfect condition. My only beef with this purchase was the proprietary wrench to remove the barrel nut was not included. I also felt a little bit of push back when I asked why but ultimately BCM sent me the wrench which for sure should be included with every upper or at the very least it should be a check box option for armorer's like myself. I understand their position; people that buy completed uppers typically don't service their own rifle. If BCM offered their marked upper as a standalone purchase I would've bought everything individually. I wanted my upper to say BCM, so I spent extra just to have it. If I bought the rail separately, it includes the wrench. Add a check box for armorer's to include the wrench in upper purchases. Regardless, buy it. It's BCM.

  • 5
    So far so good.

    Only have 300 rounds through it so far. Ran very smooth. Can't go wrong with BCM and the mlok for a build. Keep up the amazing work.

    Combat Arms Instructor

  • 5
    11.5 ELW BCM MCMR-10 UPPER

    Purchased upper as soon as it was back in stock and I must say it has become my favorite of my sbr's. The fit and finish is top quality and very lightweight as advertised. I'm running this on a Anderson lower with JP spring,SSA trigger, and Bootleg full auto bcg. Rifle cycles the full gamot of ammo suppressed or not with no malfunctions of any kind after 300 rds.Rifle cycled and ran fine with AAC nickboron bcg . Bootleg bolt has worked fine on all 4 settings and makes this rifle a real pleasure to shoot. Grouping is what is expected with aimpoint and opens up a little when warmed up. As far as doing business with BCM I highly recommend top notch service from industry proffesionals who take care of there customers. I'm a customer for life and already considering a RECCE Rifle.Thanks BCM for great products and service.