CHI M4-22 Upper Receiver Flat Top .22 Long Rifle 16 Inch Barrel Black Finish 28 Round
M4-22 Upper - Flat Top
Consists of an upper receiver and polymer magazine both with MILSPEC size perfectly interchangeable with all models of M4 - AR15 - M16 now available on the market. Conversion takes a few seconds to transform your weapon into a .22LR caliber. Without any permanent modification you may now use your M4 with inexpensive ammunition. Two 28 round magazines. Black.