Anderson RF 85 16" 5.56 NATO M4 Carbine Length Barrel

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

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

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

SPIKES TACTICAL Barrel 5.56 16" LE Mid Black

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

TacFire AR-15 Blow Back .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24 - 7.5"