The CMMG AR Conversion Kit swaps a standard AR-15 from 5.56/223 to .22 LR in seconds, making rimfire training on your primary rifle simple and affordable. The conversion bolt is a direct drop-in that uses your existing AR buffer and spring, and the included 10-round full-body magazine drops into the standard AR magwell so you don't need a different mag pouch or setup. Ten-round capacity also makes this kit a good fit for states with magazine capacity limits.

Stainless steel construction handles the round count that rimfire trainers tend to rack up, and the compact 2.45 x 8.15 x 10.30 kit size makes it easy to stash in a range bag. Use it to train new shooters without the cost of centerfire ammo, run high-volume drills at your home range, or just enjoy an AR platform on a plinking budget. To revert back to 5.56/223, pop in your original bolt carrier and the rifle is back to its factory configuration — no permanent modifications, no gunsmithing.