Theta Optics™ RIS Open reflex sight powered by a CR1620 battery allows using a green or red dot during both day and night operations. The aimpoint can be smoothly regulated vertically and horizontally. It features several brightness options. The user can select between four different aim points. Mounted on a standard 22mm RIS rail, the sight allows for rapid and precise aiming. Three additional RIS rails on the reflex sight itself allow for the attachment of additional accessories, such as a laser.