Aimpoint PRO w/ FREE MSP Silicone Gun Cleaning Cloth Always ready - always on. Turn it on for up to 3 years using one single battery. No need to fumble with switches prior to use. 2 minute of angle red dot for accurate target engagement at all distances. In service date and battery change date reminders makes inventory tracking and maintenance easy. Enhanced speed on target and increased first shot hit probability when compared Include FREE MSP Silicone Gun & Reel Cloth