The JP Sight is a state-of-the-art, micro-electronic reflex sighting system designed to give extremely fast sight acquisition and recovery in short-to-medium range applications for handgun, rifle or shotgun. This sight is fully adjustable for windage and elevation. It runs on a single Lithium battery (included) and is covered by a 1-year factory warranty. Requires firearm-specific sight mount (sold separately).Note: Installation screws not included.