HK CLONE TALK
Well as my exwife would say every inch matters. To me the OEM bpp23ek barrel protrudes like an inch from the shroud and it bothered me. So I threw one on the lathe rethreaded to 1/2x28 and put a 1/2x28 birdcage flash hider on. I also think the finish of the new flash hider matches better. What...