$449.99 ($150 OFF) No Code Needed PSA 10.5″ Carbine-Length 5.56 NATO 1/7 Nitride 12″ Slant M-lok Upper w/BCG, CH, MBUS Sight Set, & Sparc II PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-lok Upper w/BCG, CH, MBUS Sight Set, & Sparc II Get This Deal All Deals PSA 10.5″ Carbine-Length 5.56 NATO 1/7 Nitride 12″ Slant M-lok Upper w/BCG, CH, MBUS Sight Set, & Sparc II PSA 10.5″ Carbine-Length 5.56 NATO 1/7 Nitride 12″ Slant M-lok Upper w/BCG, CH, MBUS Sight Set, & Sparc II