The CTS-1300 Electronic Sight is a Compact Open Reflex Sight for Rifles and Shotguns. Featuring a 3.5 MOA round aiming dot, the CTS-1300 will elevate your long gun's performance instantly. Easily user-installed by utlizing an industry standard mounting interface* for pistol mounting and other aftermarket accessories including: risers, QD mounts, 45 offset mounts, etc. The CTS-1300 includes a low-profile M1913 Picatinny mount.