Mossberg 500/590 to 509T Steel Red Dot Adapter Plate

Due to receiver variations, you may need to modify the length of screws with a file or a grinder. This precision-machined adapter plate allows for the mounting of the Holosun 509T with a Mossberg 500, 590 or Shockwave that has a drilled and tapped receiver. We take immense pride in the aesthetics and quality of parts we produce. Each part is inspected with calibrated precision measuring tools and checked against a model print to maintain tight tolerances. Fits: Mossberg 500, 590 or Shockwave that has a drilled and tapped receiver. Holosun 509T. All mounting hardware needed comes with the order. Precision Machined 4140 alloy steel, coated with a copper phosphate to aid in corrosion resistance. Install instructions for The CNC Pros Mossberg Shotgun adapter plate: 1- Make sure the surfaces and threads are clean and free from debris. Apply a light coat of oil or grease to the adapter plate to prevent rusting.    2- Loctite 222 (purple) is recommended. Absolutely under no circumstances sho