TruGlo Pistol Red Dot Sight Mount engineered specifically for Ruger MKII and MK IV handgun platforms. Crafted from durable Fortress Steel with a sleek Black Nitride finish, this rugged mounting base provides a precise RMR footprint interface for red dot optics. Comes complete with required mounting hardware for a secure, low-profile fit. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.