The Holosun HS507C X2 is the updated version of their popular HS507C red dot, and this reflex dot sight is the perfect optic to improve your accuracy and performance with your pistol, rifle, or shotgun in close to medium-range engagements. Holosun designed these reflex sights with multi-coated lenses and a red circle/dot reticle for clear views in any environment, and these Red Dot Sights offer unlimited eye relief for maximum comfort while practicing at the range or protecting others in the field. This open reflex weapon sight offers some upgrades over its predecessor, including Lock Mode to prevent accidental operation and an ergonomic button layout for easy access.The Holosun HS507C X2 Reflex Sight is perfect for CQB engagements, and you can get up to 50,000 hours of battery life per use. What's more, you have access to 12 brightness settings and multiple reticle options so that you can best match your reticle to your ambient lighting conditions, and 2 of those settings are compatible with night vision devices. If you want to improve your reaction time and precision with your pistol, pick up this Holosun reflex sight and unleash your full potential.