.22 LR conversion kits swap the slide, barrel, and recoil system on centerfire competition pistols to cycle rimfire ammunition at a fraction of live-fire costs. Used heavily for dry-fire-complement training, trigger-break practice, and positional drills where the draw and presentation matter more than terminal ballistics. Drop-in designs available for 1911, 2011, and common production-platform frames, maintaining the same grip, sight picture, and trigger feel as the centerfire host. Fast same-day shipping on most orders at Shooters Connection.