US Patent 10234238 Reflex sight with two position-adjustable reticles

A reflex sight, having a mounting base that has an engagement element for attachment to a firearm. Also, a collimating front lens is mounted on the mounting base. A first reticle projection system projects a first reticle onto the front lens, at a first position, the first position being user adjustable, relative to the mounting base, by a first actuation assembly. In addition, a second reticle projection system, projecting a second reticle onto the front lens at a second position, the second position being user adjustable, relative to the first position by a second actuation assembly.