Alien Optic Toprail

The Alien Optic-Ready Top Rail (Standard or Match) is a fixed, non-reciprocating module that mounts directly to the frame and barrel assembly. It supports RMS, RTS2, C-MORE RTS, and Trijicon RMRcc footprint optics via adapter plates, remaining completely independent of the slide’s movement. Because it is stationary and barrel-locked, the optic holds zero with absolute stability and never shifts under recoil.