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.***

Videos Hide Videos Show Videos

1247 Reviews

  • 5
    BCM delivers

    I've heard about the quality of BCM products for a while and finally ordered a charging handle and bolt carrier group. I'm very excited about installing these in to my AR. If you're undecided about ordering anything from this company, do so. Very fast shipment. Great company. Will order from again.

  • 5
    Excellent quality

    Bcm is my go to for parts that I know will work all the time.

  • 5
    Top notch

    Great experience as always.

  • 5
    Nice

    Very well put together, and nicely packaged. Super fast delivery.

  • 4
    Auto bolt

    Overall shopping experience with BCM was great. They got everything I wanted to me in a timely manner and packaged well to protect it. Just got the bolt installed works awesome. I'll be getting a few more for my next builds.

  • 5
    Very Happy.

    I purchased this item to replace an older low mass BCG. I have it on a semi-auto mid-length and it works great. Very happy with the purchase and with BCM.

  • 5
    Great service

    I have heard good things about Bravo Company, so I figured that I would give them a try. The bolt carrier arrived very quickly (ordered on Friday, arrived on Tuesday). It arrived very well packaged. I have not tried the BCG yet, but from a quality standpoint, it looks flawless. My friends use Bravo Company BCGs in their ARs and have never had a problem.

  • 5
    BCM Bolt Carrier Group (MPI) - Auto

    The best BCG on the market!!!! Money well spent!!! I use this on all my rifles.

  • 5
    Best BCG

    BCM is one of the best in the industry. I will always be running there products on my AR's