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
    BUY FROM BC !!!!!

    BC was very helpfull with my order got it in two days and the bolt carrier is the best quality i have seen. thanks bravo company.

  • 5
    The benchmark

    Received mine a couple months ago along with my BCM lower. Assembled on my M4 middy and everything works perfectly, have fired many rounds already. Will do more business with BCM as the budget allows. Thanks BCM for holding these standards.

  • 5
    Absolutely Flawless!!!

    These are absolutely perfect in all the major cat's as the other reviewers have stated....staking is perfect and the finish and fit is flawless!! Will be back for another one in the future for sure...Thanks BCM!!

  • 5
    Bravo Company is the Lord of Warfare!

    Best quality Carrier I've ever had! Best customer service I've ever had too. Buy from here and you know you are getting what you paid for. A++++++++++++++++ SERVICE!!!

  • 5
    THe Best BCG

    These BCG are simply the Best! I've tried quite a few BCG and these are by far the highest quality, smoothest BCG.

  • 5
    None better

    I did quite a bit of online research before building my AR-15. The BCM Bolt Carrier Group has a huge following with enthusiasts all over the country and across the forums, both for its superb reliability and function and BCM's inspection policies and awesome customer service.

    I installed mine in a new BCM midlength upper, and the rifle shoots like a dream. It goes "bang" every time I pull the trigger, and has never failed to extract/eject. The empties all sit in a pretty pile 90 degrees to my right.

    I also installed the BCM Gunfighter charging handle, and it's really a match made in heaven. I admit to being a bit of a Bravo Company fanboy, but I have had zero problems with this combination, and would recommend these components to anyone. With the recent drop in price, it's an even more obvious choice!

  • 5
    BCM Bolt Carrier Group (MPI) - Auto

    Being a somewhat sceptical I wasn't sure about all the hype I've been reading on a few forums about this BCG.

    I have since replaced the Bushmaster BCG's in both rifles and in my 3 other build as well over the past few months.

  • 5
    BCG like a glove!

    I read the reviews, I read the forums and I heard the hype about BCM and the pride that goes into machining tolerances. All I have to say is bravo .....and if you're reading this as a first review believe the hype. BCG plus perfection equals BCM no question!

  • 5
    Like a glove!

    It was as if by divine providence that I purchased this item after a lot of research for bang/buck. She fit like silk into my Bushy A3 almost as if she belonged there from the start. Bang Bang every time. If I was only rich so I could buy more for my friends!