CMMG

Designed for use with CMMG 22 ARC's, dedicated uppers and rifles. Will fit most other Mil-Spec AR-15 rifles.

25rnds

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.