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 25rd 22LR magazine. Compatible with left handed 5.56/.223 chambered upper receiver groups. Ships with a 10rd Mag.
– All Stainless Steel Construction
– 10rd Magazine
– Fits: Left hand eject 5.56/.223 chambered rifles or uppers.
– Color: Gray