BCM® Standard 20" Upper Receiver Group w/ KMR-A15 Handguard

MSRP: $781.95
MAP: $781.95
Your Price: $608.95
(You save $173.00 )
(34 reviews) Write a Review
SKU:
BCM-URG-Std-20-KMR-A-15
Stock Status: In 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.

34 Reviews

  • 5
    Customer review

    Posted by Mikhail Alexandrov on Apr 10th 2019

    Excellent product, received in less then expected time.

  • 5
    Great upper

    Posted by Jake Barnes on Apr 10th 2019

    This upper is awesome just like everything bravo conpany makes. Accurate, tough, and light.

  • 5
    Recent order

    Posted by Justin Martinson on Oct 27th 2017

    My order came swiftly and well packaged . Lots of extras also in the box . Haven't had a chance to try out the new upper but I'm sure I will not be disappointed. Thanks bravo company

  • 5
    Fantastic Upper

    Posted by John K on Oct 27th 2017

    Prompt service. Perfectly functioning upper. I got it with the BCG and a large latch charging handle. The latch is great to work with a scope bell over the charging handle, but I could have gone with a medium latch I think. The upper/BCG easily ate everything I fed it - including steel Tul 223, brass Wolf Gold, and some Remington brass.
    Accuracy is excellent. Shooting cheap steel I was getting 1-1.25" at 50 off a "magazine monopod," and I was hitting 4" steel at 200 yards easily. I havent done any bench rest formal accuracy testing, but when I miss I know it's shooter error.
    The other day my friend and I ran ~500 rounds fairly quickly. No feedinn issues, barrel got hot enough to produce a nice mirage, but accuracy didn't deteriorate terribly, and the hand guard didn't get too hot to hold.

  • 5
    20" Upper 15" hand guard

    Posted by Ryan on Dec 28th 2016

    Shot 300 rounds through it so far and it works great. Excellent customer service and shipping. Keep up the good work!

  • 5
    BAD???????

    Posted by Logan White on Dec 28th 2016

    Bravo company doesn't make anything less than 5 star quality!!!!!! Now that we have that out of the way, this thing is incredible! I can definitely say that I have more mobility and control with this 20" compared to my 16" Aero precision. Now, that's not to say that aero precision isn't good, because they are. I'm just saying that BCM is better haha! I love it and it's worth the money! You will not have any sort of buyers remorse with this purchase!

  • 5
    Great Complete Upper

    Posted by Mike W. on Dec 27th 2016

    Slapped a 3x fixed power scope on it and took it out to the long range. I was hitting 400 yard steel with every 55gr round in the magazine. Can't wait to try out heavier ammo in the 1:7 twist. Solidly built and cleans up nicely. Thanks Bravo Co!

  • 5
    Look no further

    Posted by anonymous on Dec 27th 2016

    Being distracted by first rate, no compromises, quality, it is easy to lose sight of what a bargain BCM products are. I have built two rifles around BCM 20" inch uppers with 15" KMR-As. No regrets at all. I defy anyone to get an equal product at a lower price.

  • 5
    BCM 20" Upper

    Posted by David Vasquez on Oct 13th 2016

    This was a great purchase. Fit and finish are excellent and it was a real joy to shoot at the range.