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
    BCG meets the demand

    By far, of the best bolt carrier groups on the market! There are only 3 beans I would trust. Bravo is most definitely one of them, and for good reason. I compared it to other bcgs... you can tell the attention to detail that is paid. Fire it, and realize the legitimacy of this company's quality! To notch!

  • 5
    BCM Complete BCG

    I ordered these complete BCG because of the quality and price. I am amazed that BCM offers these at such a great price. I have checked other websites and you see many knock offs using non milspec parts and material for the same price as the great ones from BCM. I am very pleased with my purchase I even had my brother order a couple for spare parts.

  • 5
    Amazing bolt carrier group

    New to the AR15 platform world..I started to read and watch a lot of reviews on BCM products wanted to do an up grade on my AR. I decided to start with the bolt carrier group. Amazing product . Highly recommend it. Can't wait to do my next BCM upgrade on my AR.

  • 5
    Bolt

    Purchased a BCG to match up with the Bravo Company upper and trigger group I had. Great running rig for my first build.

  • 5
    Awesome BCG

    Excellent quality. Very satisfied with my purchase.

  • 5
    BCM bolt carrier group

    This bolt carrier group is all i use in my rifles. Fine quality like all Bravo Company products. Ships fast like always.

  • 5
    Professionalism and Quality

    The bolt carrier group that I purchased functioned flawlessly from the moment it was installed. Shipping was prompt, easily tracked, and the notifications came in a timely manner. BCM products seem to have a decent price tag with superior quality. I purchased the side charger prior and it functioned perfectly as well. I am a novice in regards to modern firearms and so are many of the people I associate with. Every one of them now know exactly who BCM is. When I start shopping for a new item, I visit the BCM website first.

  • 5
    Well Pleased

    When I had purchased the upper from BCM, I neglected to purchase the BCG with it, so I came back and order this one and once it arrived I was pleased that I did get it. It has the BCM logo on which looks good to me. My husband even loved the weight/feel and look of it as well. I sure do look forward to this next build of his.

  • 5
    BCG

    I now have 3 BCM bolts in my AR's. I have had nothing but success and flawless performance from Bravo Company and their products, this BCG is no acception. LOVE IT, and recommend to all.