FightLite Mission Configurable Rifle Dual-Feed Upper Receiver 5.56 NATO, 12.5" M-LOK, Manganese Phosphate - MCR-556-DFRM

Complete upper receiver assembly for AR-15 platform with 12.5" quick-change barrel, threaded 1/2x28, and M-LOK handguard. Dual-feed design with manganese phosphate finish includes buffer, spacer, bolt catch, adapter, compensator, and 100 M27 links. Drop-in compatible with standard MIL-Spec AR-15 lower receivers without permanent modification.