Bear Creek Arsenal 20" 6.5 Grendel Type II AR 15 Barrel

Ballistic Advantage Performance Barrel 5.56x45mm 13.70", Black - Compact and Efficient Barrel - BABL556036F

Faxon Firearms Mid-Length Button Rifled Gunner Barrel 5.56x45mm 16", Black

FN America AR-15 16" Barrel 556NATO 1:7 Twist Button Broached, Black - 20100039

Timber Creek Rifle-Length SOCOM Barrel 6.5 Grendel 18", Black

Faxon Firearms Mid-Length Button Rifled Pencil Barrel 5.56x45mm 16", Black

BALLISTIC ADVANTAGE Premium Series Barrel 6.5 Grendel 12.5" Silver

DIAMONDBACK FIREARMS Barrel 6.5 Creedmoor 24" Rifle Length Black