*mac-10 9mm Side Cocking Upper With Double Thread 3/4x10 & 1/2x28

This complete Double threaded barreled upper comes with side EZ cocker and Integral machined rail for optics. Threaded in 9mm 3/4x10 and 1/2x28 makes it versatile for suppressors and muzzle brakes. The side cocker makes it easier to pull back the bolt and accommodates lots of room on top of the scope rail for your optics of choice. For use with a Mac-10 9mm, uses your bolt assembly. Please contact us if you have any questions. (other components sold separately) Threaded in 3/4x10 & 1/2x28BACK ORDER ONLY