FM Products FM-9 AR 9mm Rear Charging Upper Receiver 16 inch Black

FM Products FM-9 AR 9mm Rear Charging Upper Receiver 16 inch Black. These AR15 Upper Receivers made by FM Products are constructed from a proprietary blend of match-grade 41V50 chrome moly vanadium steel that's tough enough to last and doesn't require the same premium treatment as chrome-lining. This FM Products FM-9 AR 9mm Rear Charging Upper Receiver 16 inch also has an M-LOK compatible handguard for advanced accessory options. Also the bolt carrier group and charging handle come included so t