CMMG 22BA651 Bravo Compatible w/ 5.56/ .223 AR Platform Rifles 22 LR 25rd Includes 3 Magazines

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 25rd magazines. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have proven to be the best choice for function.