This adapter plate is compatible with the Sig Sauer P320 optics ready slide and the Holosun 509T footprint.
Upgrade Your SIG P320 with a Hardened Steel Adapter Plate to Mount the Holosun 509T.
You need a mount as tough as your firearm—no shifting, no loosening, just rock-solid performance. Our Sig P320 to Holosun 509T Steel Adapter Plate is precision-machined from hardened steel to give you the strongest, most reliable optic mounting solution available. Training, competing, or carrying, this plate ensures your red dot stays locked in place so you can shoot with confidence. Every product is engineered, manufactured, finished, and shipped from our shop in Salt Lake City, Utah. Each part is inspected with calibrated precision measuring tools and checked against a model print to maintain the tightest tolerances.
Install Instructions
Fits:
-Sig Sauer P320
-Holosun 509T
**May fit other models, listed is what we've tested.**
Specifications:
Material: Precision machined, heat-treated 4140 alloy steel.
Finish: Coated with a copper phosphate to aid in corrosion resistance.
Hardware: (included) Custom made screws. All mounting hardware needed comes with the order.
This precision-machined adapter plate guarantees a rock-solid connection, eliminating movement and keeping your optic zeroed shot after shot.
Why Choose This Adapter Plate?
- Hardened Steel Construction – Tougher than aluminum, this plate is designed to endure serious recoil, impact, and environmental conditions.
- Perfect Fit, No Guesswork – Flawless fit for the Sig P320, securing your Holosun 509T for maximum accuracy.
- Easy Installation – Comes with all the hardware you need for a quick and frustration-free setup.
- Corrosion-Resistant Finish – Black oxide coating protects against the elements, keeping your mount in peak condition.
- Shooter-Approved Performance – Don't just take our word for it—here’s what our customers say: "Perfect fit for my Sig P320 Spectre Comp!" – Verified Customer
Why Athena Precision?
Expert Engineering – Precision-machined for flawless optic fitment.
Hardened Steel Construction – Stronger & more durable mounts.
Made in the USA – Crafted & tested in Salt Lake City, Utah.
Trusted by Professionals – Used by competitors, law enforcement, and serious shooters.
We don’t cut corners. We build gear that you can trust.
Get Locked In—Order Yours Today!
Your Sig P320 + Holosun 509T setup deserves a mount that won’t fail. Upgrade to the Athena Precision Steel Adapter Plate and experience the difference in durability, fit, and performance.
💥 Click "Add to Cart" now and lock in precision you can trust! 💥
