The Truglo Tru-Tec pistol optic adapter plate lets you mount a red dot with the Trijicon RMR footprint onto a pistol slide that is cut for the Truglo / Vortex Viper / Docter pattern. The plate bridges the two mounting patterns so the optic seats and bolts down correctly. Features: Adapts an RMR-footprint red dot to a Truglo / Vortex / Docter-cut slide Adapter plate only - optic and slide sold separately Steel construction Mounting hardware included Before ordering, confirm your slide is cut for the Truglo / Vortex / Docter pattern and that your optic uses the RMR footprint. This is the mirror of the TG8952C plate - the two are easy to confuse, so verify your slide cut and optic footprint first.