C&H Precision Weapons Agency Optic System Optic Mounting Plate Holosun 509T Matte Finish Black. This plate is used with the Springfield Armory Prodigy. This plate will not work with the Holosun HE509-RD ACSS Vulcan THIS PLATE HAS AN INTEGRATED REAR SIGHT SPECIFICATION: Material: Plates are made from Mild Grade steel. All mounting hardware is Stainless Steel Finish: Plates are Electro Deposition Painted Black INCLUDED: Qty 1 Optic Plate Qty 3 6-48 x .200 FH Plate Mounting Screws (Springfield Prodigy) Specifications for C&H Precision Weapons Agency Optic System Optic Mounting Plate Holosun 509T: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: Holosun 509T Included Accessories: Mounting Screws Optic Cut: Agency Optics System (AOS) Color: Black Finish: Anodized Condition: New Package Contents: C&H Precision Weapons Agency Optic System Optic Mounting Plate Holosun 509T Qty 1 Optic Plate Qty 3 6-48 x .200 FH Plate Mounting Screws (Springfield Prodigy) C&H Precision Weapons AOS-509T-RSR-ST: Agency Optic System Optic Mounting Plate Holosun 509T Matte Finish Black