EOTech is a leader in imaging innovation and provides rugged, reliable and innovative products that offer a true advantage to all who use them.The Holographic Hybrid Sight Green (HHS Green) features an EXPS2 with a G33 magnifier, that provides an amazing advantage when transitioning from close quarter to long-range shooting. Instant transition is achieved through a quick Switch-To-Side (STS) mount that offers a simple, quick disengagement of the magnifier. Its Green reticle is approximately 6X easier to see than red in daytime which can lead to faster target acquisition. This model model has a 68 MOA ring w/ single 1 MOA dot reticle, uses a 123 lithium battery (not included), and is compatible with 1" Weaver or MIL-STD-1913 Picatinny rail.