This complete 9mm threaded barreled upper comes with side EZ cocker, barrel threaded in 1/2 x28, and Integral machined rail for optics. 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 all M-11 9mm and MPA 30 & 35 series. Please contact us if you have any questions. (muzzle break sold separately)*BACK ORDER ONLY 2-3 WEEKS
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