American Defense AD-509T Features The American Defense Mfg. AD-509T mount was developed specifically for the Holosun 509T footprint giving shooters a dedicated quick release option for one of the more compact red dot sights on the market. Precision machined as a one piece unit from 6061 T6 aluminum the mount is built to resist flexing or shifting under recoil across a range of platforms. Its hard coat T3 Mil-Spec anodized finish in black provides resistance to scratches corrosion and general wear from repeated mounting and dismounting. Set at a lower one third co-witness height the mount positions the 509T at a natural sight line relative to iron sights. Designed with AR pistols and other lightweight weapon platforms in mind the AD-509T suits builds where a small light red dot system is preferred over a larger optic. Its patented QD Auto Lock Lever system is engineered to lock down firmly on rail systems that fall both within and outside of standard tolerances ensuring a tight repeatable fit. The quick release mechanism lets shooters remove and remount their optic quickly while returning to the same zero useful for those who move optics between builds. The American Defense AD-509T mount is for sale at GrabAGun for Holosun 509T owners who want a dependable quick detach mounting solution. American Defense AD-509T Specifications Manufacturer: American Defense Mfg. Model: AD-509T Type: Optic Mount Height: Lower 1/3 Color: Black Finish: Anodized Compatible Hosts: Holosun 509T Description: Quick Release Available At: GrabAGun