DOT SIZE IN MOA 3.5 FINISH BLACK MATTE FRONT LENS IN MM 0.0000 HEIGHT 2.5000 LENGTH 5.0500 LENGTH IN INCHES 0.0000 OTHER FEATURES: STANDARD PISTOL MOUNTING INTERFACE,NOTCH CUT FOR CO- WITNESS,AMBIENT LIGHT SENSOR, 20,000 HOUR BATTERY LIFE, POLYMER CONSTRUCTION POWER 1X