.223 Rem | 5.56 NATO

Colt

Colt MFG Colt M5 Semi-Auto Carbine with 11.5-Inch Barrel in Black Finish

CZ

CZ Bren 2 MS Pistol 5.56x45mm NATO with 8.26-inch Barrel - Black

CZ

CZ Bren 2 MS Pistol in 5.56x45mm NATO – 11.14-inch Barrel, Black Finish

CZ

CZ Bren 2 MS Pistol in 5.56x45mm NATO with Carbon Fiber Receiver and 14.17-inch Barrel