RE: Trophy ridge sights
mantis guide series
if it has v-drive take out the set srew on the v-drive and put lock-tite blue on the set screw and put it back and set it so you can move the v - drive snugly this way it doesn't loosen up on you later, other than that sight it in on the ground for 30 yards then check your pendulum and you should be good up to 30-35 yards nice sight!!