NcSTAR 1x42 Tube Dot Reflex Sight with Weaver Mount - Red and Green Red & Green Dot reticle, change colors at a push of a button This is Nectar's most compact tube reflex optic, at only 36" Inch in overall length The optic comes with micro backup iron sights on top of the optic Front post has a fiber optic insert and a peep rear sight LED (Light Emitting diode) 100% safe for the eyes EXTERIOR FINISH: BLACK - HARD ANODIZED ALUMINUM LENS COATING: PLATINUM MOUNT: INTEGRATED WEAVER STYLE