9mm Full Size Top Cocking Upper with 4.5″ 1/2X28 Threaded Barrel
Full Size 9mm Upper, Top Cocker with 4″ Threaded Barrel Installed (1/2X28)
A Cocking Knob will be required part # MPA20-45 ($10.50)
This Upper will work with any full size 9mm MPA Lower (Serial Number starting with “B”)
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