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
    Great BCG from BCM

    Perfect as expected.

  • 5
    Bolt carrier group

    Very pleased with the quality of the bolt carrier group.

  • 5
    Ar15 parts

    Fast on delivery good quality Parts in the best thing yet made in the USA

  • 5
    First time Build

    This is my first build of AR and every time I did research for a part it led me to Bravo Company. I have purchased a few parts including the BCG and CH and could not have been happier. The quality of the parts is top notch and the delivery was fast. Bravo Company is a QUALITY show and I would recommend them to anyone who ever asks. Onto my next build.....

  • 5
    bcg

    Love the quality, will buy more.

  • 5
    BCG is flawless

    Replaced an older bcg with a new BCM bcg and the rifle runs flawlessly. Couldnt ask for anything better.

  • 5
    Customer for life!

    Once again guys product arrived on time and we'll we know how good your products are,will always shop with the good guys BCM for life!

  • 5
    BCG!

    Great product! very satisfied with this BCG!

  • 5
    BCM BCG

    I put my first AR together with the Upper being build almost entirely of BCM product. The Bolt Carrier Group functions flawlessly and smoothly! I couldn't be happer!