BCM® Bolt Carrier Group (MPI) - Auto

MSRP: $199.00
Your Price: $189.00
(You save $10.00 )
(756 reviews) Write a Review
SKU:
BCM-Bolt-Carrier-Group-AUTO-MP
Maximum Purchase:
12 units
Features:
Milspec Carpenter No. 158® steel
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.


 
 
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.***

756 Reviews

  • 5
    Customer review

    Posted by anonymous on Oct 22nd 2019

    Review body is empty

  • 5
    Bcg

    Posted by Michael Dorizas on Oct 18th 2019

    Awesome bolt carrier group. Runs flawlessly in my SPR build I just completed. I recommend and will purchase BCM products again.

  • 5
    BCM M4 Bolt Carrier

    Posted by Steven on Oct 17th 2019

    Worked great, 100 plus rounds and not one issue.

  • 5
    BCM BCG

    Posted by David Schrader on Oct 15th 2019

    Excellent product as expected!

  • 5
    Sweet

    Posted by anonymous on Oct 13th 2019

    Very top shelf item!

  • 5
    Customer review

    Posted by grover trusty on Oct 12th 2019

    Review body is empty

  • 5
    Customer review

    Posted by Ronald McMillan on Oct 8th 2019

    Review body is empty

  • 5
    Customer review

    Posted by Benjamin Marcks on Oct 5th 2019

    Review body is empty

  • 5
    Customer review

    Posted by anonymous on Oct 2nd 2019

    Review body is empty