Bolt Carrier Group

The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR-15 style firearm no matter if you are running suppressed or unsuppressed, and regardless of conditions. The K-SPEC is a truly plug and play BCG that will...

Complete Mil Spec M16 bolt carrier group.Features :8620 Steel CarrierPhosphate Finish9310 Steel Bolt

Daniel Defense 5.56 NATO (5.56x45mm & .223 Remington) / 300 Blackout (7.6x35mm) full-auto compatible, M16 Profile, complete bolt carrier group assembly.Features :Machined from 8620 steelHeavy Phosphate CoatedChrome linedProperly staked gas keysMade in...

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...

Seeing MIL-SPEC as just the starting point, they set out to ensure the best options are available for their demanding customers. Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease...

Purpose-built for 9mm AR-15 pistol caliber carbines, their Generation 2 PCC blow-back carriers keep the features of their well-loved first BCG with modern improvements. They maintain the dual COLT/GLOCK compatible geometry, user-removable weight and...

Seeing MIL-SPEC as just the starting point, they set out to ensure the best options are available for their demanding customers. Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease...

This 6.8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.8 SPC. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme...

This 9mm AR Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are coated with EXO...

The Spikes Tactical 9mm Enhanced Bolt can be used with both Glock and Colt pattern lowers.Features :Blow Back DesignBlack Nitride FinishLaser Engraved with ST Spider Logo

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...

San Tan Tactical believes in America, and the heritage upon which this great nation was built. They only use the highest quality machines in conjunction with the highest quality American made materials.Features :Black Nitride Finish6mm ARCEnhanced Bolt...