Kirst Cartridge Konverter to convert stainless steel .44 caliber Ruger Old Army revolvers to shoot 45 ACP ammunition. Drops right in and converts your cap and ball into a cartridge revolver. No gunsmithing or F.F.L. required, S.A.S.S. legal and a lifetime manufacturer warranty. All Kirst Cartridge Konverters are precision CNC machined in the USA from stainless steel. .45 caliber cylinders must never be installed in a .36 caliber revolver. Not recommended for original antique ammuntion.

Please see our selection of cowboy ammunition.