KRISS has introduced a semi-auto carbine version of the submachine gun, but with a 16-inch barrel, that is legal for most civilians to own. The KRISS CRB carbine is intended as a general-purpose sporting/range gun, taking advantage of the inherent accuracy and hitting power of the venerable .45 ACP cartridge. It accepts the same Glock 21 magazines as the submachine gun, and KRISS also manufactures an extension, the MagEx, which converts a standard 13-round Glock 21 magazine into a 30-round magazine. In this video, John Higgs walks through the various features of this innovative carbine. Look for the full feature story in the September 2011 issue of Tactical Weapons magazine On Sale 7/12/11. Video by Dan Henderson.