BCM® SS410 16" Mid Length Upper Receiver Group w/ KMR-A15 Handguard 1/8 Twist

MSRP: $1,088.95
Your Price: $780.95
(You save $308.00 )
(19 reviews) Write a Review
5.56 NATO
Barrel Length:
Barrel Style:
Stock Status:

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: 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.

SS410 Barrel Steel
This 16" BCM barrel is machined from SS410 stainless steel. Featuring hand lapped 1/8 twist rate button rifling and M4 feed ramps barrel extensions, the 410 stainless barrel gives the shooter the best balance of weight and accuracy. 410 stainless is also harder and more corrosion resistant than conventional 416 stainless found in other commercially available precision barrels.
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.
5.56 NATO Match Chamber (USMC SAM-R Chamber)
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.  The SAM-R chamber is the precision version of the 556 NATO chamber.
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.***

19 Reviews

  • 5
    Great Upper!

    This is my second upper from BCM my first 16inch full length hand guard. Very impressed with the quality and equally impressed with the fast two day delivery. I have it mounted to their BCM lower with BCM lower parts kit. No play between the upper and lower. Fits well and light weight! I highly suggest BCM! I haven't shot the gun yet still in the process of finalizing irons and optics right now but plan on enjoying this rifle for many years and hopefully use it for two gun once I get some trigger time!

  • 5
    Complete Upper

    BCM customer service is top notch. I received my order a day earlier than expected. To my pleasant surprise there was some extras included; hat, decals, posters. The workmanship is outstanding! I definitely would recommend BCM to anyone.

  • 5
    BCM 16" Recce Upper

    Accurate, reliable, awesome - exactly what you'd expect from BCM. Very pleased with the upper. Slapped an ACOG on it and am banging away at 500 yard steel plates with ease.

  • 5
    Well built

    Built to last a lifetime the only problem is I don't think I can have just one

  • 5
    Great product quick response ans shipping.

    Can't go wrong with this deal. The complete upper was shipped quickly and come along with a bunch of little goodies. The upper itself looks great and came in built, oiled, and works to perfection. I added a complete BCG and ambidextrous charging handle and the fit streamlines yhe light design.

  • 5
    SS410 stainless

    This was my first build and I am so happy I went with Bravocompany. Was able to put 100rds through it yesterday absolutely flawless. Shipping was fast. And received a free bravocompany hat to match my rifle. Thanks for a great transaction. Will be doing more business soon.

  • 5
    the best rifles in the USA

    wow. I have been a fan of Bravo company for about 3 years now. This is the first time that I was able to own a complete BCM rifle. I bought this upper assembly on line and the price was too good to be true. I purchased a BCM lower assembly at a local gun store to match the upper and I have to say this is the best firearm I own. The quality is unmatched in American made tactical rifles. Getting this BCM rifle is a hundred times better than getting a red rider bb gun for Christmas. I can see why BCM is considered the best tactical rifle company in the country. great quality. great craftsmanship, great prices, great service. Oh I forgot the mention the swag that came with my order. I got a BCM ball cap, stickers, calendar, two dvds and more. all top quality items. I will forever buy my gear from Bravo Company and if you do not own any BCM rifles or gear you will never regret taking the step Up too BCM

  • 5
    Very very well made upper!

    The description says carbine length gas system. But the picture showed mid length. Very pleased to have received it and it being mid length which is what I wanted! Very well made upper that I am using for my first ar 15 build. Light weight and sturdy. Came with alot of oil(probably lube), did a quick wipe down with a old shirt. Very happy with this purchase!!

  • 5
    Love it!

    Thanks for the fast delivery of my upper. I have not had the chance to shoot it but aesthetically it is very pleasing. I also really like that the hand guards are very slim as well as the total setup being very light! I will be ordering more equipment from yall in the future!