Holosun 507C to 509T Optic Plate Adapter
or 4 interest-free payments of $10.00 with
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
Product description
Easily Convert to a Closed Emitter Optic
The Holosun 507C to 509T Optic Plate Adapter is a specialized optic mount that allows seamless compatibility between firearms milled for the Holosun 507C footprint and the enclosed Holosun 509T red dot sight. Engineered for durability, this adapter expands your firearm’s optic capabilities to enable you to enjoy the rugged performance and reliability of the 509T.
Seamless Compatibility
Converts the Holosun 507C and Trijicon RMR footprint to fit the closed emitter Holosun 509T optic. This enables users to mount the Holosun 509T to their firearms. The Holosun SCRS also works with this adapter, which you can put on handguns like the 509T but it isn’t as streamlined and it will be very hard to find iron sights to work with.
Strong and Secure Adapter
The plate and screws are made from high-strength steel to avoid issues such as bending, warping, or breaking that other adapter plates that use weaker metal can have. Additionally, this adapter plate has been tested to withstand rigorous use and heavy recoil, ensuring your optic stays secure and zeroed.
Low-Profile Design
Maintains a thin profile, minimizing added bulk and providing a good fit with your optic without raising your optic to skyscraper height.
Easy Installation
Includes all necessary hardware and torx allen key for quick and straightforward installation, making it easy to confidently and quickly upgrade your setup. We would still recommend using a torque wrench to get exact poundage but tightening it until it’s tight will do also.
Precision Fit
Engineered to exact specifications, the adapter plate ensures a tight and stable connection between your optic and slide, preserving zero and delivering consistent performance.
Compatibility
- Firearms and mounts with the Trijicon RMR footprint
- Holosun 509T and Holosun SCRS Red Dots
NOTE: This plate DOES NOT fit the 509T ACSS Vulcan
Specifications
- Brand: Holosun
- Model: Holosun 507C to 509T Optic Plate Adapter
- MPN: HS509PLT-507C
- Fit: Trijicon RMR / Holosun 407C and 507C Footprint Firearms and Optic Mounts AND Holosun 509T Optic
- Material: Steel
- Finish: Anodized
- Color: Black

Customer reviews
No reviews yet. Bought this one? Tell the next builder how it went.
Questions & Answers
No questions yet. Ask about fit, install or compatibility and our team answers within a business day.
Warranty & returns
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.








