Description The American Defense Mfg AD-509T is a one-piece quick-release mount designed specifically for the Holosun 509T red dot. Intended for AR pistols and other platforms that require a compact optic solution, the mount prioritizes durability while remaining lightweight. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize for corrosion and wear resistance. The patented QD Auto Lock Lever accommodates both in-spec and out-of-spec rail systems for secure attachment. Key Specifications Brand: American Defense Mfg. Model: AD-509T. Compatible footprint: Holosun 509T Footprint. Mount configuration: Co-Witness. Construction material: 6061 T6 aluminum. Finish: Hard coat T3 Mil-Spec anodize. Color: Black. Release system: Patented QD Auto Lock Lever. Attachment style: Quick Release. Product type: Mount. Engineered for reliable, low-profile optic integration, the AD-509T Co-Witness mount provides a practical solution for shooters who need a durable, repeatable mounting platform for the Holosun 509T. Its combination of precision machining, robust finish, and an automatic-locking QD lever make it suitable for users seeking a straightforward, dependable optic mount.
