Crimson Trace Corporation, CTS-25, Red Dot, 2 MOA, Matte Black WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. 4 MOA Dot, 1913 Picatinny Riser The CTS-25 Electronic Sight is a compact Red Dot Sight for rifles and carbines. Featuring a 4.0 MOA round aiming dot, the CTS-25 will elevate your long gun's performance instantly. Installed in seconds by utilizing an included riser for rail mounting, the red dot attaches effortlessly to M1913 Picatinny rail sections. REMOVABLE RISER INCLUDED