American Defense Manufacturing Holosun 509T Co-Witness Mount

American Defense Manufacturing’s AD-509T QD mount was engineered specifically for the Holosun 509T red dot, delivering a compact solution for AR pistols and other platforms where a small, lightweight red dot system is essential. Machined as a single piece from 6061 T6 aluminum and finished with hard coat T3 Mil-Spec anodize, the mount combines durability with minimal weight. The patented QD Auto Lock Lever system accommodates both in spec and out of spec rail systems, ensuring reliable mounting across different setups.