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
    Perfection!

    U can't ask for a better mil spec bcg this thing is made very well so it looks nice while working flawless

  • 5
    BCG

    Quality product, very impressed. Worth every dollar spent.

  • 5
    BCM BCG

    Bcm bolts are known for their quality and did not disappoint!

  • 5
    It's from BCM

    Just what I expected. Another top quality product from BCM. Looking forward to my next build. Thanks BCM

  • 5
    Perfect

    Just as ordered. Shipping was super fast!

  • 5
    BCM Bolt Carrier Group (MPI) - Auto

    excellent product, great service, decent price

  • 5
    Another Build

    Best BCG I've perchased yet.

  • 5
    Bcm bolt carrier group

    This is the best bolt carrier group I have ever owned. The finish is great. The second one that i have purchased and have no doubt that it will hold up to it's name.

  • 5
    Very Satisfied

    This is my 2nd AR and my 1st AR build from scratch. I didn't want to break the bank so I was looking for quality products at a reasonable price. Based on my research I decided purchasing a BCM BCG and a BCM barrel was the best decision. I am very pleased with the specs of the BCG and it's overall quality, look and feel. I'm very pleased with the BCG and can recommend it to others.