The ROMEO5X red dot sight mounts on any platform and is as tough as it is small. The solid, lightweight aluminum design will give peak performance and years of service. The ROMEO5X features a 2 MOA red dot and has 10 illuminations setting; 8 daylight settings plus 2 Night Vision settings. It can run on a single AAA battery for up to 50,000 hours under normal use. Waterproof and Fogproof Riser mounts can be set to Absolute or Lower Third Cowitness. Mfg: Sig Sauer, Inc.