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 product!

    It's a quality bcg from a great company. Took it apart, wiped down, lubed, reassembled. Plunked right into my bcm middy upper as it should. No complaints and will pick up another. Works as it should!

  • 5
    Great fit and finish

    I was impressed with the overall feel and quality of the BCG. Will be buying again!

  • 5
    The Best of the best

    Best BCG . Precise , 100% Functional
    Will buy no other.

  • 5
    Never had any problems

    This is my 4th carrier from bravo company. I've never had any issues with them. Work exactly as they should with proper maintenance and replacing the gas rings after the recommended rounds.

  • 5
    Top notch

    BCM's gear is always on point. I will definitely be a return customer.

  • 5
    BCM For Life!

    This is my 6th rifle build and once again can't find anything better for the price than BCM products.You guys rock!

  • 5
    Upper Receiver BCM

    Great product! Fast shipping! Website is horrible! !!

  • 5
    Quality that you pay for

    Great quality, but expensive side. rough texture finish and durable finish. Great firing pin and bolt. Nice stuff.

  • 5
    Great value and quality.

    I have BCM BCGs in every AR I own. I appreciate the attention to detail when it comes to QC, and after thousands of rounds and many classes, I have never had a single issue.