BCM® Standard 11.5" Carbine (Enhanced Lightweight *FLUTED*) Upper Receiver Group w/ KMR-A10 Handguard

MSRP: $956.95
Your Price: $708.35
(You save $248.60 )
5.56 NATO
Barrel Length:
Barrel Style:
Barrel Profile:
Enhanced Lightweight *FLUTED*
Stock Status:

Out of stock

All BCM® Upper Receiver Groups with a KMR-A Handguard Include:

  • One 3" Picatinny Rail Section
  • One BCM KeyMod 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.***

47 Reviews

  • 5
    Customer review

    Best upper receiver group I have ever purchased, hands down!

  • 5
    So glad I got this upper.

    Was a little hesitant to buy this. I’ve wanted a Bravo Company AR since I found out about them, but wondered if the price was justified. After lots of research I decided that “buy once, cry once” is probably the way to go. Can’t say enough about my experience with BCM. Quality is top notch. Service was great. Just a few days from time of order until I received my upper. And they threw in a good amount of swag!

  • 5
    BCM 11.5" upper

    Fit with lower receiver like they were matched at factory. Balance is excellent, biased toward middle with light, fluted barrel. I have not put any rounds through it. I striped down and sent parts to be Cerakoted since I am not a fan of the BCM black finish.

  • 4
    All went well!

    Orders usually go very well! Company is reliable, fast on shipping and has great products! Would rate 5 or higher except I had a question! Phone is impossible with this company! Heaven help if there was ever a problem! Can not reach them on customer service line!!

  • 5
    Superb !!!

    This is a very nice upper. I was very pleased with the overall weight and feel of this upper. Truly great quality piece. Fit and finish is top notch. I took to this to the range and ran 120 rounds though it without a problem. I would recommend this upper to anyone wanting one of great quality and that is lightweight.

  • 5

    Perfect, couldn't have expected more.

  • 5

    Flawless. I have shot out to 800 years with standard ammo, using the Light barrel with Standard AMMO (American Eagle 5.56). One of my BCM Uppers has clocked at least 10K rounds. Extremely dependable. Thank BCM for producing an amazing product and at an excellent price!

  • 5
    Fast and Great Service!

    Im out in commifornia and items came super quick and well packaged! haven't gotten to shoot yet but am confident everything is kosher. All the extra freebies made everything sweeter.

  • 5
    Great uppper! Super light

    Love this upper - its super light