BCG Bolt Carrier Groups


BCG Bolt Carrier Groups are essential components for AR15 and M16/M4 rifles, ensuring reliable operation and smooth cycling. These groups come in various finishes such as Nickel Boron, Black Nitride, and EXO Coating, providing enhanced durability and reduced friction for optimal performance. Brands like FailZero, Noveske, and Wilson Combat offer top-quality BCG assemblies that are trusted by professionals and enthusiasts alike. Whether you are building a new rifle or upgrading your current setup, BCG Bolt Carrier Groups are a must-have for anyone looking to maximize their rifle’s potential. Choose from a wide selection of options to find the perfect fit for your needs.
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    Wilson Combat Bolt Carrier features a drop in fit for any quality 5.56 case head based AR rifle. Precision machined from Carpenter 158, shot peened for increased strength and includes a tool steel extractor and ejector, appropriate extractor spring, and randomly batch HPT (High Pressure Tested). *Note- The only difference between "semi-auto" and "full-auto" carriers are the carrier weight and external profile. The "full-auto" carrier is slightly heavier to provide more mass and lower cyclic rate that can benefit carbine length and shorter gas systems, short barreled/suppressed rifles and machine guns. The "semi-auto" carrier is slightly lighter to provide the least amount of recoil impulse for rifle length gas systems and its design makes reinstalling the firing pin easier after cleaning. Both carrier types are considered completely interchangeable.
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    Wilson Combat BCG Bolt Carrier Groups

    Wilson Combat

    Now: $139.98
    Was: $188.99
    Manufactured by our finest domestic Mil-Spec contractors these are among the best 5.56 AR rifle bolts on the market and the same bolts we use as the basis of our renowned custom rifles. Our bolt is precision machined from Carpenter No. 158 steel, shot...
    Now: $139.98
    Was: $188.99
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    WMD BCG Guns NiB-X M16/M4 Bolt Carrier Group
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    WMD BCG Guns NiB-X M16/M4 Bolt Carrier Group

    WMD Guns

    Now: $99.98
    Was: $164.95
    The WMD BCG is precisely machined from high-grade steel to M16 specs before receiving WMD Gun's proprietary NiB-X nickel boron coating. This coating results in super-smooth action, extreme corrosion resistance, and a harder-than-chrome surface that...
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    Was: $164.95
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    FailZero BCG M16/M4 Complete Bolt Carrier Group EXO Nickel Boron Finish FailZero BCG M16/M4 Complete Bolt Carrier Group EXO Nickel Boron Finish
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    FailZero BCG M16/M4 Complete Bolt Carrier Group EXO Nickel Boron Finish

    FailZero

    Now: $99.98
    Was: $169.99
    FailZero, M16/M4 Bolt Carrier Group, No Hammer, EXO Nickel Boron Coated, Black Finish Nickel Boron treated Extreme durability Dry lubricity Corrosion resistant This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most...
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    Was: $169.99
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    FailZero BCG Lightweight Bolt Carrier Group EXO Nickel Boron Coated Nickel Finish FailZero BCG Lightweight Bolt Carrier Group EXO Nickel Boron Coated Nickel Finish
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    FailZero BCG Lightweight Bolt Carrier Group EXO Nickel Boron Coated Nickel Finish

    FailZero

    Now: $149.98
    Was: $185.00
    FailZero, Lightweight/Low Mass Bolt Carrier Group, No Hammer, EXO Nickel Boron Coated, Nickel Finish, 9.2 oz Total BCG Weight
    Now: $149.98
    Was: $185.00
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    This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.
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    FailZero BCG AR15 Complete Bolt Carrier Group EXO Nickel Boron Coated Matte Finish

    FailZero

    Now: $99.98
    Was: $169.99
    FailZero, AR-15 Bolt Carrier Group, No Hammer, EXO Nickel Boron Coated, Matte Finish This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron...
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    Was: $169.99
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    This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.
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    FailZero BCG Complete Bolt Carrier Group 7.62X39 Nickel Boron Coated

    FailZero

    Now: $99.98
    Was: $159.99
    FailZero, M16/M4 Bolt Carrier Group, No Hammer, Completely Assembled, EXO Nickel Boron Coated, Nickel Finish This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts...
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    Was: $159.99
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    FailZero, Bolt Carrier Group With Hammer, Completely Assembled, EXO Coated, Fits AR-15, Nickel Finish. This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. FailZero, Bolt Carrier Group With Hammer, Completely Assembled, EXO Coated, Fits AR-15, Nickel Finish. This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance.
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    FailZero BCG AR15 Complete Bolt Carrier Group EXO Coated Nickel Finish

    FailZero

    Now: $99.98
    Was: $119.98
    This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...
    Now: $99.98
    Was: $119.98
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    FosTech BCG Complete Bolt Carrier Group FosTech BCG Complete Bolt Carrier Group
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    FosTech BCG Complete Bolt Carrier Group

    FosTech

    $99.98 - $199.98
    This is a standard full-auto M16 cut bolt carrier group. It is designed to function with the Echo AR-II and the Echo Sport. Bolt Assembly Bolt: Shot Peened; Magnetic Particle Inspected and Marked Bolt Material: 9310 Alloy Steel Compatibility: .223...
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    WMD BCG NiB-X M16/M4 Bolt Carrier Groups w/SA Hammer WMD BCG NiB-X M16/M4 Bolt Carrier Groups w/SA Hammer
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    WMD BCG NiB-X M16/M4 Bolt Carrier Groups w/SA Hammer

    WMD Guns

    Now: $139.98
    Was: $174.95
    The WMD BCG is precisely machined from high-grade steel to M16 specs before receiving WMD Gun's proprietary NiB-X nickel boron coating. This coating results in super-smooth action, extreme corrosion resistance, and a harder-than-chrome surface that...
    Now: $139.98
    Was: $174.95
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    Gemtech BCG Suppressed Bolt Carrier Group
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    Gemtech BCG Suppressed Bolt Carrier Group

    GemTech

    Now: $149.98
    Was: $239.98
    The Gemtech Suppressed Bolt Carrier is a drop-in replacement and will allow the shooter to choose between suppressed (S) and unsuppressed (U) settings without any permanent modifications to the firearm. No longer will you need to change gas blocks,...
    Now: $149.98
    Was: $239.98
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    Was: $239.98
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  • Aero Precision 5.56 Bolt Carrier Group Aero Precision 5.56 Bolt Carrier Group
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    Aero Precision 5.56 Bolt Carrier Group

    $165.00
    Features:  M16-cut carrier Machined from 8620 steel Carrier has forward assist serrations Mil-Spec phosphate coating Properly staked gas key Chrome lined gas key and bolt channel 5.56 Bolt is machined from Carpenter 158 tool steel Shot...
    $165.00
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  • Spikes Tactical M16/AR15 5.56 Steel Bolt Carrier Group
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    Spikes Tactical M16/AR15 5.56 Steel Bolt Carrier Group

    $139.99
    Spikes Tactical BCG is a great choice for the discerning marksman. The carrier group is made from Mil-Spec 8620 tool steel, and features a shrouded firing pin. Finished inside and out with a 5.3.1.2 MIL-STD-171 phosphate finish, and also has a hard...
    $139.99
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