COLT COMMANDO SBR 5.56 11.5IN BARREL BLACK WITHOUT BUTTSTOCK HANDGUARD TRIGGER GUARD GAS BLOCK LE6933-OEM2

COLT M5 COMMANDO SBR 5.56 11.5IN HVY BARREL BLACK MAGPUL CTR STOCK A2 GRIP M-LOK HG TROY SIGHTS CM556-11H-M5S

COLT M5 CARBINE SBR 5.56 10.3IN HVY BARREL BLACK MAGPUL CTR STOCK A2 GRIP M-LOK HG TROY SIGHTS CM556-10H-M5S

Barrage Rifle 9MM 16 inch barrel 30 Round Black with 15 inch Handguard

SHADOW SYSTEMS E526 5.56MM BK/BZ 11.5" SBR

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

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

COLT ENHANCED PATROL RIFLE 5.56MM 14.5 MATTE BLACK SBR