The Model EXPS2-GRN holographic sight provides accelerated accuracy while taking up a mere 2.75 inches of rail space. It incorporates green-reticle technology, which makes it approximately 5 times easier to see in daylight than red-reticle sights. This feature allows ample rail space to add attachments such as magnifiers. The unit is sturdy and reliable, featuring a lower third iron sight co-witness and ergonomic side-button adjustments. It also comes equipped with an adjustable, quick-detach locking lever.