The EOTech EXPS3 1x Tan Holographic Weapon Sight with 68MOA Circle & Two 1 MOA Dots offers true 2-eyes-open shooting and a 7 mm raised base that still allows for iron sight access. It features easy-to-adjust side buttons and an adjustable, locking, quick-detach lever for easy attachment and removal. EXPS3 was chosen by the U. S. Special Operations Command (USSOCOM) as their primary optic for close-quarter engagements. It is also the optic of choice for the technologically advanced modern rifle hunter. Its night vision-compatibility makes it a versatile choice for day or night hunting.