Anderson 5.56 16in M4 Mid-Length AR-15 Barrel

SPIKES TACTICAL Barrel 5.56 16" LE Mid Black

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

Faxon Firearms Carbine-Length Button Rifled Pencil Barrel w/Pinned Gas Block 5.56x45mm 10.50", Black

FN AMERICA Barrel AR-15 5.56/223 16" Carbine Length

LaRue Tactical STEALTH .223 Wylde AR-15 Barrel - Mid-Length - Medium - 16"

SPIKES TACTICAL Barrel 223/5.56 16" Hammer Forged fits AR Rifles

Sons Of Liberty Gun Works M4-L89-13.7 M4-L89 5.56mm 30+1 13.70" Black QPQ Button Rifled Barrel, Black Hardcoat Anodize Receiver, Ambidextrous