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BCM Standard 20" Upper Receiver Group w/ BCM KMR- *ALPHA* 13" Handguard

BCM Standard 20" Upper Receiver Group w/ BCM KMR- *ALPHA* 13" Handguard
BCM Standard 20" Upper Receiver Group w/ BCM KMR- *ALPHA* 13" Handguard


 
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List Price: $778.95
Our Price: $598.95
You save $180.00!


Stock Status:In Stock
Product Code: BCM-URG-STD-20-KMR-A-13

Add BCM® Bolt Carrier Group with Upper Group

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   The one and only BCM® milspec Bolt Carrier Group!
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BCM® Presents the KMR *ALPHA*

All of the same unique features and advantages of the widely favored BCM® KMR Handguard, now offered in 100% Aluminum


All KMR *ALPHA*Upper Receiver Groups Include:

· One 3” Picatinny Rail Section

· One BCM® KeyMod™ Sling Mount

· Laser “T” Markings on Top Rail

· Laser Engraved Logo


Bravo Company MFG, Inc.
PLEASE NOTE: These batches will sell out quickly.
If the Stock Status is Out of Stock and you would like to get notification when more product arrives, please click the "Email me when Back-In-Stock" link under the Add To Cart button. You will get immediate notification of all new arrivals of product.
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Please check back with our website often. Sorry but we cannot take pre-orders or backorders on these products.
Professional Grade Weaponry, by BCM®
Made by Bravo Company MFG, Inc. (BCM) These Barreled Upper Receiver Groups are designed for shooting professionals 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
M4 Feed Ramp Flat Top 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 uppers 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 and private security personal 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 on the USGI M16/M4 rifles 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 ammo.
Mil-Spec F-Marked Forged Front Sight Bases
Mil-Spec for rifles issued to the troops require taller front sight bases on all flat top AR rifles. Many commercial offerings use M16A2 height front sight bases on all of their barrels regardless of what type of upper it is installed on. As a result, owners of rifles and carbines with the flat top receiver configuration can have problems getting a proper 'zero' for elevation with Mil-Spec back up iron sights. As all of the BCM uppers are built for flat top uppers, all have the proper Mil-Spec F marked front sight base to insure the correct height for iron sight zeroing when using military iron sights. Mil-Spec taper pins secure the forged front sight base with the sling swivel secured by tubular rivets.
Government Barrel Profiles
Duty rifles are built to be carried - day in and day out. The USGI barrel profiles (often referred to as the Government Profile) enable the operator to carry their weapon for longer periods of time and deploy them faster than the heavier commercial H-Barrel counterparts. The government profile barrel is also compatible with the current M203 mounting systems.
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 © 2010-2014 Bravo Company MFG, Inc.
Features
  • M4 Feed Ramp Barrel Extension
    M4 Feed Ramp Flat Top Receiver
    T-Marked Upper Receivers
    USGI 1/7 Twist Rates
    USGI 5.56 NATO Chambers
    Mil-Spec 11595E - Certified Barrel Steel (CMV)
    Chrome Lined Bore and Chamber
    Manganese Phosphate Barrel Finish
    USGI Government Profile Barrels
    HPT (High Pressure Test) Barrels
    MPI (Magnetic Particle Inspected) Barrels

Average Customer Review: 5 of 5 Total Reviews: 12 Write a review.

  0 of 0 people found the following review helpful:
 
i have an addiction for quality December 28, 2016
Reviewer: anthony biondo from howell, MI United States  
i seen some review videos and heard how great bcm was so i ordered an upper and was at my house in two days . i ordered another  20in upper the following week because it was frigging awesome

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  0 of 0 people found the following review helpful:
 
Astounding December 28, 2016
Reviewer: Seth E. from Albuquerque, NM United States  
So happy I decided to go with the 20 in upper.  Super quality, its very lightweight, and a vast improvement over my previous PSA carbine upper. I was just astounded at the craftsmanship when i took it out of the box. Well worth the money. Smooth shooting and very accurate, having only shot .223 Wolf gold out of it so far. The free float barrel seems to help out a lot, that along with the rifle length gas system lowering the recoil. BCM is an awesome company they even sent me all kinds of cool stuff like posters, keychains, stickers, and a hat with my order. Thanks BCM! Will heartily recommend!

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  0 of 0 people found the following review helpful:
 
Sweet as usual.......... December 28, 2016
Reviewer: Stephen Francone from Grass Valley, CA United States  
The usual well put together Bravo Co. upper. Service prompt and delivery quick. Nice shooting complete upper. Like the KMR handguard. Thinking of changing all other uppers to KMR units. Would recommend buying ONLY from BCM

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  1 of 1 people found the following review helpful:
 
Nice Rifle Upper September 22, 2016
Reviewer: Casey Brown from Mapleton, IA United States  
Couple hundred rounds through this upper so far - accurate and reliable with no issues with any kind of ammo.  Very nice machinery.  Please pardon the delayed feedback - currently at AT.

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  0 of 0 people found the following review helpful:
 
Excellent Upper, fast delivery September 22, 2016
Reviewer: Morgan Leake from Agency, MO United States  
The upper arrived as described.  Quality is obvious, and weight is nice and light.  Shipped very quickly after order was placed.  Arrived in good packaging, with complimentary cap and paraphernalia.

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