Primary Arms PLX Top Cap Reflex Sight Mount

This is a reflex sight mount from the Primary Arms PLX line, listed as a top cap reflex mount. Past the name, the product data carries no dimensions, no material and no compatibility list, so the fitment is something to confirm rather than assume.

Two things decide whether any reflex sight mount works for you. The first is the bolt pattern under the sight, because footprints do not cross over and two patterns that look alike across a counter are frequently nothing alike once the screws come out. The second is whatever this mount attaches to on your end. Check both before ordering. A mount is a cheap part that turns an expensive optic into a paperweight when the pattern is wrong.