Holosun HS507C Red Dot Sight with a 50,000 hour battery life and a top mounted solar panel. This red dot sight is brand new and has never been mounted to a gun. Memory function and motion sensor. Tarx mount and waterproof. Parallax free. 2 MOA dot and 32 MOA circle. Comes in its factory box with mounting tools and instruction manual. No FFL required, ships to buyers home.