(The Smith & Wesson Performance Center Handgun Cleaning Kit, MPN 1094381, is a premium cleaning solution designed for deep cleaning of handguns. Pistol brushes. 22 cal, 9mm/.357/.38cal. 40/10mm cal. 45 cal) and jags (.22 cal, 9mm/.357/.38 cal. 40/10mm cal. 45 cal).