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
    Excellent

    Excellent quality and price for the bcg, everything i have received form bcm is exceptional and has been delivered in 3 days or less

  • 5
    Customer review

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  • 5
    BCG

    Excellent Quality as usual

  • 5
    Customer review

    Review body is empty

  • 5
    Customer review

    Very good work with customer service!!! 👍🏽👍🏽👍🏽 Still haven’t hap chance to shot it tho but very tight with my upper & lower thanks BCM!!!!

  • 5
    Great BCG

    Use on my AR, definite difference compared to the stock BCG that came with the rifle. Reliable and dependable. Going to get a second one for my AR pistol build. Great quality from a great Company. Keep up the outstanding work.

  • 5
    BCM Bolt Carrier Group (MPI) - Auto

    Item was received when expected. Selected this item based on the reviews that it received over other brands of the same product that I had looked at. With over 500 reviews, and none of them less than 100% satisfied, the choice was simple.

  • 5
    Fast delivery/quality materials

    Totally satisfied

  • 5
    Good product

    Fast shipping and well built. Only ran 60 rounds so far, but it worked perfectly will give an update when I run a thousand. I doubt it will give me any issues and keep up the good work guys.