The Shield Mini Sight Compact (SMSc) Glass Edition is an advanced reflex sight designed for everyday carry and single-stack pistols featuring a 4MOA dot reticle and scratch-resistant ultra-clear glass lens with upgraded electronics.Shield Mini Sight Compact (SMSc) Glass Edition4MOA dot reticle for fast target acquisitionScratch-resistant ultra-clear glass lensNylon glass-filled polymer constructionCo-witness capability with standard iron sightsUltra-low profile design (1.7" x 0.9" x 0.9")Parallax-free opticsCR2032 3V lithium batteryNight vision compatibleEngineered by shooters for shooters this compact reflex sight provides a seamless transition from iron sights with its bore-line alignment and unobtrusive design making it ideal for concealed carry competition shooting and tactical applications.