Noveske 13.7" Infidel 5.56mm Stainless AR-15 Barrel

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

FN America AR-15 16" Barrel 1:7 Twist Button Broached, Black - 20100046

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

Proof Research AR-Type Barrel 11.50" for AR-Style, Stainless - 100387

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

FN America AR-15/M4 Barrel - Precision and Reliability in Stealthy Black - 20-100047

NOVESKE Barrel 5.56 10.5" Lightweight Shorty SS Carbine