The FR1 Red Dot Mount allows the user to pair a Red Dot Sight with the FR1 Accessory Cap for quick down-range target acquisition. Made From 6061-T6 aluminum Type III Hardcoat Anodized Teflon impregnated. Mount integration: The FR1 Red Dot Mount design incorporates 3 pins pulled at a 45-degree angle using APA’s enhanced 8-40 screw. This provides a component of force both down and angular into the 3 points for unprecedented repeatability and strength.