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
    Customer review

    Review body is empty

  • 5
    BCM BCG

    Great products and service

  • 5
    Excellent BCG

    Gold standard BCG

  • 5
    Customer review

    Review body is empty

  • 5
    Perfect Service

    Order came faster than promised. Packaging materials were like bullet proof quality, no flimsy staff. The bolt went in like it was original and is working great. Because of holiday week it was not hardly used, but in a few weeks it will be.

  • 5
    Upgrade for my 300 blk pistol

    I recently built my first AR-15. After running 700 rounds through it and learning more about ARs, I regretted going “cheap” on several components and spent more money on a match barrel, a better brace and lastly, the above BCG. My first generic BCG was already showing acute wear on several lugs, isn’t military spec, and the fit and finish is terrible compared to the new BCM. Now I’m 110% happy with my AR and feel confident it’ll run smoothly for a longtime.

  • 5
    BCG

    This is my second Auto BCG from Bravo. Fast shipping and ease of purchase. Will be returning again.

  • 5
    Hope it's as good as the last one I bought.

    On 10/23/16, I bought a BCM BCG from Brownells, just to have an extra laying around, in case I needed one. I eventually used it for Pistol build with a BCM 11.5" 5.56 upper. It worked great. I decided to build a 300 Blk Pistol and needed a BCG. I checked with Brownells as they give me a 10% discount, but they were back ordered, so I paid a little extra to BCM and got it from them. Haven't fired it yet, but expect it will be just fine.

  • 5
    You can't go wrong with BCM

    BCM BCGs are almost legendary and there is a reason for that. I wouldn't hesitate to recommend this BCG to anyone in need of one. I also have a spare BCM bolt in my range bag.