ANDERSON RF 85 BARREL 5.56 16IN M4 BARREL MID LENGTH

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

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

Faxon Firearms M4 Button Rifled Barrel 5.56x45mm 16", Black

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

ONE HORSE 16" Mid-Length SOCOM Barrel 5.56 NATO 1:8 Twist

AERO PRECISION M4E1 Threaded Complete Upper 16" 5.56 Barrel w/ 15" M-LOK ATLAS R-ONE Handguard - BLK

Faxon Firearms Duty Carbine-Length Button Rifled Gunner Big Bore Barrel .450 Bushmaster 16", Black