.22 LR conversion kits for 1911, Glock, M&P, and Sig P226/P320 platforms built for competitive shooters who want to cut ammo costs without changing their draw, grip, or trigger feel. USPSA and IDPA shooters use these kits to rack up dry-fire and live-fire reps at a fraction of the cost of centerfire ammo, keeping trigger control and sight tracking sharp between matches. Brands include Advantage Arms, CMMG, Ciener, Kimber, and Mec-Gar, covering slide/barrel conversion units and dedicated .22 magazines that drop onto your existing frame. Because the conversion retains your competition gun's factory grip angle, trigger, and sight picture, training carries over directly to your Major-caliber setup instead of building bad habits on a different platform. Compatibility options cover full-size and compact 1911 frames, Glock Gen3/Gen4/Gen5 pistols, M&P full-size and compact models, and Sig P226/P320 platforms, with threaded and non-threaded barrel options depending on kit. Whether you're running high-volume dry-fire drills at home or burning through thousands of rounds at the range before a big match, a .22 conversion kit keeps your reps up and your ammo budget intact. Fast same-day shipping on most orders at Shooters Connection.