Ar-15 Mike-45 Complete Upper Receivers - Mike-45 16 Complete Upper Receiver

The Foxtrot Mike Products .45 ACP Upper Receiver comes fully assembled and ready to drop on any pistol caliber lower receiver that uses Glock magazines. With its full-length Picatinny top rail and M-LOK compatible handguard, the Foxtrot Mike .45 ACP Upper offers plenty of mounting space for optics and other accessories. A unique interlocking connector between the upper receiver and handguard ensures the barrel nut will not work loose over time. Premium Melonite-finished 4150 carbone steel B