Plate works with all VP9OR models. Plate compatible with: Meopta Meo Sight III, EOTech MRDS (Not the EFLX-requires Plate #4), Noblex Sight 3, and Meprolight microRDS. Use screws holding filler plate to mount optic plate. HK USA does not cut slides for optics mounting.
Specifications:

Type
Model	Optics Plate #1 For VP9 Optic Ready Models
Style	Red Dot Optic Mount
Misc
Finish	Black
Material	Steel
Pieces	1
Gun Type	Pistol
Mount Type	Docter/Meopta/EFLX/Noblex Pattern Footprint
Length
Rings Included
Ring Height
Mount Height