ONE HORSE 16" Pistol Gas SOCOM Barrel 300 Blackout 1:7

ONE HORSE 7.5" 300 Blackout Barrel 1:7

ONE HORSE 10.5" 300 Blackout 1:7

ONE HORSE 16" Carbine Gas M4 Contour Barrel 5.56 NATO 1:7

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

ONE HORSE 10.5" Carbine Gas 5.56 NATO Barrel 1:7

ONE HORSE 7.5" 5.56 NATO Barrel 1:7

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