BCM® Standard 16" Mid Length Complete Upper Receiver Group w/ MCMR-15 Handguard

MSRP: $970.35
Your Price: $739.65
(You save $230.70 )
Maximum Purchase:
50 units
5.56 NATO
Barrel Length:
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About the BCM® Standard 16" Mid Length Complete Upper Receiver w/ MCMR-15 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.***

30 Reviews

  • 5

    I upgraded from my Rock River Arms upper that has a short plastic rail system that wobbled. Ive always wanted a nice upper with free float rail system and im so glad I found this. At the recommendation of Lucas from TREX Arms, I purchased this and it was worth every penny.

  • 5
    16 inches of fun

    Unfortunately for me I live in New York so the fun I can have with this is limited. That being said I built the upper on a wilson combat lower in hopes of leaving ny really having fun with it. All that being said you won't be disappointed in this purchase. As always bcm delivers quality! Totally worth the money! If you don't belive me buy one for yourself and give them a try!

  • 5
    MCMR 15 16” stnd upper

    This product shipped to my door in 5 days! Paired it with a lower I had and shot 300 rods without a hiccup! Of course that’s expected from Bravo Co. will be buying a 300blk upper when available to run suppressed. Great product highly recommend!

  • 5
    Absolutely everything you need

    The quality of this upper is second to none, it is worth every penny. There is a reason BCM is a leader in the AR platform, you won't regret it.

  • 5
    BCM® Standard 16" Mid Length Upper Receiver Group w/ MCMR-15 Handguard

    Extremely nice upper as expected from a company like Bravo Company. Shipping company lost my package for a number of days and BCM was quick to send out a replacement. Awesome company to do business with!

  • 5

    Purchased the complete upper and was not disappointed. Excellent craftsmanship all around. I cannot see myself purchasing another company other than BRAVO from here on out!

  • 5
    bcm standard 16 in mid length mcmr 15 upper

    top notch in fit , finish and performance. I put this on a bcm complete lower , mid length gas so much smoother then my carbine , handguard is very comfortable and light. Customer service is great as well they quickly responded and fixed my mistake I made on my order and shipped same day!

  • 5
    BCM Upper

    Beautiful piece of machinery. The excellence in quality and attention to detail cannot be missed

  • 5
    Solid Upper

    We already know you want one. Not all uppers are built the same. Invest in one that is designed to last and this is coming from a budget guy. You’re not wrong for investing in this one. Do it already.