This bundle includes a compact Crimson Trace red dot rifle sight. It features a 4.0 MOA round aiming dot, the CTS-106 will elevate your rifle's performance potential instantly. Installed in seconds by utilizing an included riser for rail mounting, the red dot attaches effortlessly to Picatinny rail sections. It is user adjustable for windage and elevation. The battery life is greater than 50 hours. It has side accessible battery access and it is constructed with a 6061-series aluminum body