Blade is the mission-driven, wide angle 1x prism scope dedicated for home defense and law enforcement. It sports handy Auto-On Shake N' Wake technology. Blade's revolutionary Bullet Rise Compensating reticle compensates for optic height over bore at just 5, 10, and 15 yards when mounted on an AR-15. Available with red or green illumination, Blade's etched reticle appears black when illumination is off. Blade is an excellent choice for shooters with astigmatism who have issues with dot sights. When you need speed and precision at in-your-face distances, trust the Blade. Eye Relief: 3.8" Mfg: Swampfox Optics