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
    BCG for AR

    Received this high quality product within a couple of days as promised. Looking forward to trying it out soon. Would certainly recommend this and Bravo Company to anyone.

  • 5
    bcg

    This bolt works well good fit

  • 5
    Great BCG

    Great BCG as expected.

  • 5
    BCM BCG

    This is my second BCM BCG. They run great and meet or exceed all the US mil specs. The BCG comes with the black insert and the o-ring, giving you the option to run one or both. I have put over 1,000 rounds down range with the first BCM BCG with no issues and no unusual wear.

  • 5
    BCM BCG

    Extremely satisfied. BCM delivers every time with top notch quality!

  • 5
    Bolt Carrier Group

    Best, most reliable BCG on the market. Works flawlessly in every AR platform I own. Top notch customer service as well.

  • 5
    I can't ask for anything more

    I ran my delton DT sport with the upgraded bcm BCG, enhanced spring, and h2 buffer. This rifle runs like a dream now. My next move is bcm comp mod 0. Can't wait for that!! You guys rock and thank you for throwing multiple stickers in the box!!

  • 5
    BCM BCG

    FAST and reasonably-priced shipping, high quality, very satisfied. Only downside is price.

  • 5
    Simply the best

    This BCG is milspec. I have had nothing but good luck with them. I have a BCG with over 6,000 rounds fired and I would say its got at least another 6,000 rounds left. I HAVE seen other brands fail much sooner. I truat my life to BCM.