Arms Republic Glock 9mm Complete Bolt Carrier Group BCG Black AR-9MM-BCG

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 24.75in 16in Barrel Carbine 1... XTS Complete Upper Receiver w/o BCG AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red. These XTS complete uppers do not include the Bolt Carrier Group. Specifications for XTS AR-15 16in 300 BO... more

Lead & Steel Lead & Steel Arc C158 Bolt Carrier Group - Dlc 5.56Mm .300Blk Ind... Lead & Steel Lead & Steel Arc C158 Bolt Carrier Group - Dlc 5.56Mm .300Blk Individual Hp Mpi Bcg Black ARC-BCG-DLC. This gives the bolt a just right gas seal inside of the carrier which increases gas efficiency and service life. Nearly all M16 BCG... more

Obsidian Arms M16 Bolt Carrier Group BCG 5.56 Phosphate Black OA-M16-BCG-P-556... Obsidian Arms M16 Bolt Carrier Group BCG 5.56 Phosphate Black OA-M16-BCG-P-556-N. 56 bolt. Specifications for Obsidian Arms M16 Bolt Carrier Group (BCG): Manufacturer: Obsidian Arms Color: Black Finish: Phosphate Fabric/Material: 8620 Steel Cartridge:... more

Cryptic Bolt Carrier Group BCG - Complete 6.5mm Grendel/7.62x39mm Nickel Boron... Cryptic Bolt Carrier Group BCG - Complete 6.5mm Grendel/7.62x39mm Nickel Boron CC-0705. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures... more

Cryptic Bolt Carrier Group BCG - Complete .223/5.56/.300 AAC Blackout Right Ha... Cryptic Bolt Carrier Group BCG - Complete .223/5.56/.300 AAC Blackout Right Hand Mystic Bronze CC-0102. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per... more