Shield Sights SMS 1x Mini Sight - 4MOA Dot - Smallest, lightest, and toughest mini day/night sight for military, law enforcement, and sporting use. With over 100,000 units delivered, the Shield Mini Sight is trusted by British, US, Australian, New Zealand, and NATO special forces. Previously sold under brands like Firepoint, Tasco Optima, Trijicon RedDot, and JPoint, it's known for proven performance and rugged reliability worldwide. SHIELD footprint mount; Iron sight co-witness system; No-click precision zeroing; Clear D-shaped acrylic lens; Ultra-light (10.8g) polymer build; Auto brightness adjustment; Up to 20,000-hour battery life (CR2032);