This HK Mounting Plate is compatible with the VP9 models with factory optic cuts pistols and the following sights Meopta Meo Sight III, EOTech MRDS, and Noblex Sight 3. *Note HK USA does not cut slides for optics mounting. Model Optic Plate Style Red Dot Optic Mount Finish Black Pieces 1 Series #1 Gun Type Pistol Material Steel Mount Type Docter/Meopta/EFLX/Noblex Pattern Footprint