C&H Precision Weapons Walther Defense PDP 1.0 to Holosun 509T Adapter Plate Steel. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers. Specifications for C&H Precision Weapons Walther Defense PDP 1.0 to Holosun 509T Adapter Plate: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: Holosun 509T Optic Cut: Walther PDP 1.0 Optics Ready Fabric/Material: Steel Color: Black/Orange Gun Model: Walther PDP Weight: 0.1875 lb Finish: CNC Machined Gun Make: Walther Package Contents: C&H Precision Weapons Walther Defense PDP 1.0 to Holosun 509T Adapter Plate x3 M3 x 6 MM FH Plate Mounting Screws What firearm models does the manufacturer say C&H Precision Weapons Walther Defense PDP 1.0 to Holosun 509T Adapter Plate is compatible with? The manufacturer suggests that C&H Precision Weapons Walther Defense PDP 1.0 to Holosun 509T Adapter Plate is compatible with Walther PDPC&H Precision Weapons WLPDP-509T-ST: Walther Defense PDP 1.0 to Holosun 509T Adapter Plate Steel