The Shield SMS2 Mini Sight 2 Glass Edition represents the evolution of the first red-dot sight developed specifically for pistols featuring a 4 MOA red dot and an ultra-clear scratch-resistant glass lens with Si02 Quartz hard coating.Shield SMS2 Mini Sight 2 Glass Edition4 MOA red dot reticle for precision shootingScratch-resistant ultra clear glass lens with Si02 Quartz coatingGlass-filled nylon polymer construction for enhanced durabilityLow-profile design allows co-witnessing with standard iron sightsParallax free operationCR2032 3V lithium battery powerNight vision compatibleUpgraded electronics with improved battery contactsDesigned by shooters for shooters this reflex sight mounts close to the bore-line for natural pistol presentation and seamless transitions. Perfect for tactical applications competitive shooting and personal defense where reliability and precision matter most.