Red 6 MOA Dot Utilizing Our Trademarked STIG-RS™ System For the RMR/407C/507C Footprints Shake Awake/Motion Deactivated Standby Up to 50,000 Hours of battery life IPX7 waterproof Side Mounted Battery Window Size - 24x17mm or 0.94"x0.67" Parallax Free 9 Daytime Settings/2 Night vision Settings Extra Bright Level Kicks it Up to 11 WOLF SRS6 PRO – Strong. Simple. Always Ready.The Cyelee WOLF SRS6 PRO red dot is made for real defense. It’s tough, fast, and won’t slow you down. With a slim, low-profile shape, it fits your carry gun without feeling bulky. The SRS6 PRO uses the popular RMR footprint, so it works with many optics-ready pistols. You won’t need to modify your slide. It also fits most IWB and OWB holsters, making it great for duty or everyday carry. Thanks to Motion Deactivated Standby (MDS), the sight shuts off when still and turns back on when you move, so it’s always ready when you are. Built to handle hard recoil and rough use, the WOLF SRS6 PRO gives you fast aim and real peace of mind. Window - 24x17mm or 0.94"x0.67"