The HWS EXPS2 maximizes rail space with its compact size and allows for co-witnessing of iron sights. It has convenient side buttons to add a magnifier and features an adjustable, locking, quick-detach lever for easy attachment and removal. Also offering water-resistant capability up to 10 feet, the XPS2 is a great compact and lightweight option for your platform. The EXPS2-2 features a 2 dot model reticle with 2 x 1 MOA Red Dots with a 68 MOA Red Ring. Features Auto Shut Down at 8 hours.