Just added CRIMSON TRACE CORPORATION CT RADA(R) MAX - RAPID AIMING DOT REFLEX SIGHT LARGE OPEN REFLEX SIGHT. CT RAD MAX. Large function buttons for brightness settings. M1913 Pic Rail Mount - Fits most MIL-SPEC Pic Rails - Low profile pic rail mount included. Recessed optic lens for increased durability. Adjustable windage and elevation - aerospace aluminum construction - IPX7 waterproof - Rubber sight cover included - Top access battery location. (1) CR2032 battery included - 50,000 hours of runtime - 3 MOA dot - Auto Shutoff Function - Sight automatically shuts off after 8 consecutive hours of operation to conserve battery life - Manual ON/OFF function to conserve battery life. Mfg: Crimson Trace Corporation