Save on ammunition costs, hone your shooting skills, and just have fun with the .22LR Rimfire Conversion Kit, threaded barrel version, available for SIG Sauer firearms. Features a hard coat anodized slide machined from solid aluminum billet. A complete replacement assembly, the Rimfire Conversion Kit installs as easily as field stripping the pistol. Simply remove the standard slide assembly, slide on the Rimfire Conversion Kit, add the included .22LR magazine, and you're ready. The Rimfire Conversion Kit features adjustable target sights and comes complete in a hard carry case.