Maximize rail space without sacrificing runtime. The EOTech Model EXPS2 allows for cowitnessing of iron sights and convenient side buttons to add a magnifier. It features and adjustable, locking, quick-detach lever for easy attachment and removal. QD mount is repeatable to within 1 MOA after re-mounting. Utilizes a single 123 lithium battery with a continuous runtime of 600 hours on a brightness setting of 12.