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
    BCM is top quality

    I ordered the BCM in early Feb when they had a batch become available. I just finished testing my rifle and I have to say the BCG worked flawlessly. After inspection and cleaning the quality control on these units visually appear excellent. I matched my BCM bcg with a BCM upper in my build and everything works smoothly.

  • 5
    BCM BCG is thick, solid, tight.

    I have two of these in two rifles, and they are of obvious quality. Plus, there's nothing like seeing that BCM logo showing prominently when the dust cover flips open. Zero failures (other than magazine issues).

  • 5
    .300 AAC Blackout Build

    This BCM was used in a gun I asked my son to build for me. He suggested this BCM because, in his words, "this is the only BCM worth running if you want it to work forever."
    I've hog-hunted with this gun since November and it has never failed me once. I waited to post my feelings on the BCM because I wanted to give it a good run for it's money - and, it was money well spent.
    Thanks Bravo Company. You've earned a customer for life.

  • 5
    Best BCG and Best Customer Service!

    What service! Order on Wednesday in my hands Saturday! These are the best BCG's by far. Combine that with top notch customer service from a company that cares about its customers.....it gets no better.

  • 5
    BCM builds the Best Bolt Carrier Ever!!!

    This carrier is awesome, I would not trust my life with anything less then BCM. When you are looking for great parts look no further then BCM.
    Semper Fi

  • 4
    BCM BCG

    Get the Email notification and stay by your computer/phone this BCG sells out quick for a reason. The fact they come USED with lube and metal flakes/flashing is testament to the fact they USE and TEST parts b4 you let your life become dependent on them- BY FAR THE BEST PART OF BCM. With a company that has a past of quality control and high standards they have an obvious future therefore you really cant go wrong. Im retarded pleased with them.

  • 5
    Excellent!

    I have one problem with this carrier-- It's priced too low! Superb craftsmanship. Couldn't be more pleased.

  • 5
    Amazing!

    I was finally able to get one before they sold out!
    I have to say, the quality is bar none (I have other BCM products). The best bcg out there. I bought this a whole day after I bought other parts for my frankenrifle. I received this part 3 days before any of my other orders came in from different companies! Same standard shipping. BCM ROCKS! The bcg had carbon and brass shavings on the bolt face (normal) but I wouldn't have it any other way. It's just proof of the qc and proofing they do to make sure it's up to standard before the bcm name goes on it. BCM customer for life right here!

  • 5
    New BCM Bolt

    Today I shot a string of 100 rounds threw my AR with a new BCM bolt, it perform flawlessly. I had absolutely 0 malfunctions with the bolt. It extracted perfectly with and without the black insert. I would recommend this bolt highly if your life depended on your AR.