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Bolt Carrier Groups

Bolt Carrier Groups

The Bolt Carrier Group is the heart of your firearm, and is responsible for housing the bolt and resetting the hammer, as well as bearing the majority of the gas pressure with each shot. Having a quality bolt carrier is crucial for a smooth, reliable operation, and differences in weight, platings, coatings, and even firing-pin hole size change how your gun fires. Check out the different BCG configurations. Make sure you're getting the best performance from your firearm with the best bolt carrier groups offered by ACME Machine.

  • On Sale
    ACME AR-308 / AR-10 Mil-Spec 7.62 Complete Bolt Carrier Group Nickel Boron ACME AR-308 / AR-10 Mil-Spec 7.62 Complete Bolt Carrier Group Nickel Boron

    ACME AR-308 / AR-10 Mil-Spec 7.62 Complete Bolt Carrier Group Nickel Boron

    MSRP: $299.99
    Now: $199.99
    Was: $299.99
    Get a high quality Bolt Carrier Group for your AR with this superb .308/7.62 Nickel Boron BCG from ACME Machine ! This .308/7.62 Nickel Boron BCG with Forward Assist features an 8620 Tool Steel Carrier and 9310 Carpenter Steel Bolt, with a properly...
    MSRP: $299.99
    Now: $199.99
    Was: $299.99
  • Out of stock
    On Sale
    ACME 5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158

    ACME 5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158

    MSRP: $149.99
    Now: $119.99
    Was: $149.99
    This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt...
    MSRP: $149.99
    Now: $119.99
    Was: $149.99
  • Out of stock
    On Sale
    Toolcraft AR-308 BCG Nitride Bolt Carrier Group

    Toolcraft AR-308 BCG Nitride Bolt Carrier Group

    MSRP: $249.99
    Now: $199.99
    Was: $249.99
    Toolcraft BCG Nickel Boron AR308 Auto Bolt Carrier Group 9310 Alloy Steel MPI Tested All manufacturing and coating is done by Toolcraft. 100% Made in USA and includes Lifetime Warranty from Toolcraft. If ever a problem, simply call Toolcraft and...
    MSRP: $249.99
    Now: $199.99
    Was: $249.99
  • Out of stock
    On Sale
    Toolcraft 5.56 Bolt Carrier Group AR-15 Nickel Boron C158 Toolcraft 5.56 Bolt Carrier Group AR-15 Nickel Boron C158

    Toolcraft 5.56 Bolt Carrier Group AR-15 Nickel Boron C158

    MSRP: $179.99
    Now: $143.99
    Was: $179.99
    Toolcraft BCG Nickel Boron AR15 / M16 Auto Bolt Carrier Group 9310 MPI Tested All manufacturing and coating is done by Toolcraft. 100% Made in USA and includes Lifetime Warranty from Toolcraft. If ever a problem, simply call Toolcraft and they will take...
    MSRP: $179.99
    Now: $143.99
    Was: $179.99
  • Out of stock
    On Sale
    Toolcraft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride

    Toolcraft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride

    MSRP: $149.99
    Now: $119.99
    Was: $149.99
    This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt...
    MSRP: $149.99
    Now: $119.99
    Was: $149.99
  • Out of stock
    On Sale
    Toolcraft AR-308 BCG Nickel Boron Bolt Carrier Group

    Toolcraft AR-308 BCG Nickel Boron Bolt Carrier Group

    MSRP: $279.99
    Now: $223.99
    Was: $279.99
    Toolcraft BCG Nickel Boron AR308 Auto Bolt Carrier Group 9310 Alloy Steel MPI Tested All manufacturing and coating is done by Toolcraft. 100% Made in USA and includes Lifetime Warranty from Toolcraft. If ever a problem, simply call Toolcraft and...
    MSRP: $279.99
    Now: $223.99
    Was: $279.99
  • Out of stock
    On Sale
    Toolcraft 6.5 Grendel Type 2 Mil-Spec Bolt Carrier Group AR-15 Nitride

    Toolcraft 6.5 Grendel Type 2 Mil-Spec Bolt Carrier Group AR-15 Nitride

    MSRP: $149.99
    Now: $119.99
    Was: $149.99
    This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt...
    MSRP: $149.99
    Now: $119.99
    Was: $149.99
  • Out of stock
    On Sale
    Toolcraft 458 / 450 Mil-Spec Bolt Carrier Group AR-15 Nitride

    Toolcraft 458 / 450 Mil-Spec Bolt Carrier Group AR-15 Nitride

    MSRP: $149.99
    Now: $119.99
    Was: $149.99
    This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt...
    MSRP: $149.99
    Now: $119.99
    Was: $149.99
  • Out of stock
    On Sale
    Toolcraft 6.8 Mil-Spec Bolt Carrier Group AR-15 Nitride

    Toolcraft 6.8 Mil-Spec Bolt Carrier Group AR-15 Nitride

    MSRP: $149.99
    Now: $119.99
    Was: $149.99
    This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt...
    MSRP: $149.99
    Now: $119.99
    Was: $149.99
  • Out of stock
    NEW
    CMMG 16.1"  M4 .22 LR Barrel & BCG Kit 22D7C6C

    CMMG 16.1" M4 .22 LR Barrel & BCG Kit 22D7C6C

    Your Price: $339.99
    CMMG Barrel and Bolt Group Kit, 16.1" M4, 22 Long RifleEverything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go.Features and Specifications:Manufacturer Number: 22D7C6C16.1"M4...
    Your Price: $339.99