The Shield Mini Sight Polymer Edition is the world's original smallest lightest and toughest mini day/night sight with a 4MOA dot reticle. With over 100 000 units delivered globally this proven reflex sight has earned its reputation among military law enforcement and competitive shooters worldwide.Shield Mini Sight Polymer Edition (SMS-4MOA-POLY)4MOA dot reticle for precision aimingParallax-free clear polymer opticGlass-filled polymer construction for durabilityAnti-reflection coating with no color tintingCR2032 3V lithium battery poweredUsed by British Army Special Forces and NATO forcesOriginally designed for pistols but evolved into an all-around combat optic the Shield Mini Sight excels in competition shooting self-defense and tactical applications. Enables shooting with both eyes open for enhanced peripheral vision and faster target acquisition.