Gideon Optics Mediator II 1x 21.4x18.8mm Acro-Type Closed-Emitter Red Dot SightThe Mediator II ACRO sight is a practical closed emitter red dot optic that allows for faster target acquisition and improved accuracy in challenging environmental conditions. Using powerful LED emitters that reflect a bright reticle onto a specially coated lens, aiming becomes as easy as point and shoot. This enclosed ACRO red dot is engineered to meet the challenges of real world tactical situations while maintaining a confident sight picture. Get