BCM® Bolt Carrier Group (MPI) - Auto

MSRP: $214.00
Your Price: $199.00
(You save $15.00 )
(1247 reviews)
SKU:
BCM-BCG-AUTO
Features:
Milspec Carpenter No. 158® steel
BCM® Bolt Carrier Group (MPI) - Auto
Stock Status:
BCM® (MPI) complete bolt carrier group is fully assembled. (BCG)

Bolt carrier group (auto version) for your AR15, M16, or M4. Parkerized exterior and chrome lined inside carrier. Machined to USGI specifications. This M16/M4 carrier includes the proper Mil-Spec gas key. Gas key is chrome lined and heat treated per GI specifications. Gas key is secured to carrier via USGI domestic mfg Grade 8 fasteners and properly staked per Mil-Specs. These properly hardened parts ensure a strong staking and proper gas system functioning.

The bolt assembly is machined from the correct Mil-Spec Carpenter No. 158® steel, shot peened for increased strength, includes tool steel machined extractor and ejector, BCM Extractor Spring, and is HPT (High Pressure Tested) and MPI (Magnetic Particle Inspected).

Prior to shipping, all BCM Bolt Carrier Groups are test fired for function. As such, the Bolt Carrier Group will show handling marks consistent with these quality control procedures.
 
Watch the video below to learn more about our quality control for Bolt Carrier Groups:
 
 
Written by Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE), Chief of the Firearms Technology Branch
...M16 bolt carriers are not designed and intended solely and exclusively for use in converting a weapon into a machinegun and are not any combination of parts from which a machinegun can be assembled. Further, an M16 bolt carrier is not a firearm as defined in the GCA or a machinegun as defined in the NFA. An M16 bolt carrier is simply a machinegun part and as such its domestic sale and possession is unregulated under the Federal firearms laws. It is not unlawful to utilize a M16 machinegun bolt carrier in a semiautomatic AR15 type rifle.
 
***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.***

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1247 Reviews

  • 5
    My favorite company

    Everything youd expect from the top quality people at BCM

  • 5
    BCM

    working as designed and no flaws! intend to get more in the future. keep up the solid work Bravo Company!

  • 5
    BCM BCG

    This is the only BCG that I will use in my rifles. Not too much else to say other than this is another great product from BCM!!

  • 5
    Great bcg

    Havent shot it much, but so far has been a great product. Looking forward to putting a few thousand rounds down range with it.

  • 5
    Great business.

    I got exactly what I wanted in less time than I expected. These guys are great.

  • 5
    Great Buy. (not sponsored)

    The heart of a rifle IS the bolt. When I began my build I always had BCM in mind. Sure, there are cheaper alternatives out there... However, I wanted something that I could bet on if I needed it to preserve my life or others. I scoured the internet for several top BCG lists, and they confirmed my lustful desire of Bravo Company's products.

    With 100 rounds down range and no malfunctions... I plan on a life long reliable rifle with a heart that just keeps on beating.

    P.S. They sent a lot of stickers...

  • 5
    Great Quality

    Once again, BCM pulls through.

  • 5
    Bolt Carrier Group

    Great workmanship and attention to detail. Solid staking of gas key. I put this BCG in my Core15 Build with Strike Industries .223 Wylde 416RS 16” Barrel. Functions flawlessly as expected.

  • 5
    Nice BCG for 300 BO

    Very nice BCG 300 BO build done fast shipping high quality carrier !! I like the BCM engraved logo it stands out ! Nice job definitely recomend !