.22 LR cal., approx. 2 in. barrel integrated on top of a curved stainless steel knife, pivoting action, two-piece walnut grips, side lever opening, spur trigger, serrated hammer, OAL 10 3/4 in. All knife pistols were supplied with a letter from the ATF stating that it was a legal firearm to own. 150 mfg. 1993-1995.