Mac-10 9mm Top Cocker With Double Threaded Barrel

This replacement upper is ready to be dropped into your Mac-10 or MPA. It comes with a DOUBLE threaded 9mm barrel with a standard coarse thread of 3/4x10 and a 1/2x28 fine thread for a Mac-10, & MPA 10 & 15 series. It has the standard front sight on it as well. Bolt, bolt handle and other parts sold separately.