>>63949641
i've tested the RTZ on all the ARMS mounts i've used, windage has always been dead on and elevation is within 1/4 MOA. if they're not returning to zero you either didnt install them right (push the recoil lugs all the way forward in the slot) or your rail is out of spec

>>63924889
hate the mag release, anti-rotation pins, and safety, but other than that not bad