Quick view CMMG CMMG 22LR AR-15 CONVERSION KIT WITH (3) 10 ROUND MAGAZINES CMMG AR-15 22LR Conversion Kit. Just swap this drop-in conversion with the bolt carrier group from your 5.56/.223 chambered rifle and you will be ready to shoot .22LR. Ships with 3 10rd magazines. Features: Easy conversion for inexpensive... Now: $229.95 Was: MSRP: Add to Cart Compare