I used it on rifles for fast target acquisition, reliability, and durability. My iphone couldn't get a good pic of the reticle, but it does work. No cracks in the windows. 68 MOA speed ring with a 1 MOA dot. I put an oversized tool less screw to torque onto the rail. I have the original screw and allen wrench and will include them. Recently sent it in to be cleaned. Certificate from Eotech is pictured. Non NV version. $275 Waco area. If interested text 209-six29-23zero4.