The EPS Red MRS is a compact enclosed pistol sight designed for full size pistol. The EPS Red MRS features 2 MOA Dot & 32 MOA Circle, 7075 T6 aluminum housing and our lowest deck height, facilitating use with standard height iron sights on many pistol models. 2 MOA Red Dot & 32 MOA Circle Up to 50,000 Hours Battery Life Parallax-free & Unlimited Eye Relief Shake Awake™ Technology with Last Setting Recall 7075 T6 Aluminum Housing IPX8 Certified Waterproof Holosun “K” series footprint Power Source: Battery Battery Type: CR162 Brightness Setting: 8 DL&4 NV