Shop BRT Barrels Barrels Uppers Uppers BCG / Upper Parts BCG / Upper Parts Adjustable Gas System Adjustable Gas System Gas System Gas System Muzzle Devices Muzzle Devices 9mm AR 9mm AR Featured Products BRT 8.5" SUBGUN 9mm AR Barrel BRT 8.5" SUBGUN 9mm AR Barrel $125.00 BRT 16" PRO 556 Barrel BRT 16" PRO 556 Barrel $189.00 Sold out BRT 8.0" OPTIMUM PDW Hammer Forged Chrome Lined Barrel - 300BLK BRT 8.0" OPTIMUM PDW Hammer Forged Chrome Lined Barrel - 300BLK $300.00 BRT 11.5" OPTIMUM Hammer Forged Chrome Lined Barrel BRT 11.5" OPTIMUM Hammer Forged Chrome Lined Barrel $325.00 BRT Gold Extractor Spring Upgrade Kit ( 3 Pcs ) BRT Gold Extractor Spring Upgrade Kit ( 3 Pcs ) $14.95 BRT M4A1 Bolt Carrier Group C158 HPT/MPI Auto BRT M4A1 Bolt Carrier Group C158 HPT/MPI Auto $169.00 Sold out BRT M16 CHROME Bolt Assembly Kit C158 HPT/MPI BRT M16 CHROME Bolt Assembly Kit C158 HPT/MPI $140.00 BRT EZTUNE Gas Tube - Configurable - Midlength BRT EZTUNE Gas Tube - Configurable - Midlength Midlength $64.95