The Spitfire HD Gen II 3x prism scope is built for rapid transitions while still being usable even without illumination. The streamlined look and flush mount turret design makes for a smaller, lighter, and faster optic. The updated optical design and fully multi-coated lenses provide improved resolution, and cuts chromatic aberration. The prism design and etched reticle solve the distortion problems for users plagued by astigmatism. The BDC-4 reticle is built for holdovers out to 650 yards while offering 12 brightness settings; the lowest two settings being ultra-low for use with night-vision equipment. The Spitfire HD Gen II prism sight can be mounted at two heights, lower 1/3 co-witness or a low mount option. Nitrogen purged, the Spitfire HD Gen II is waterproof, shockproof and fogproof; standing up to whatever you throw at it.