The ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR's, Carbines, shotguns, and air rifles. Brightness is adjusted with a topmounted rotary dial, featuring 10 daytime and 2 night vision settings for quick target engagement in any condition.High-performance lens coatings for excellent light transmission and dot contrastUltra-compact size and weightPrecise 2 MOA DotSlipover, see-through flip-backsIntegral brightness control featuring 10 daytime and 2 NV settingsOver 20,000 hours runtime on a CR1632 batteryAircraft grade aluminum housing and mountDependable IPX-7 waterproof and fog-proof performance Specifications:MAGNIFICATION - 1xOBJECTIVE LENS DIAMETER (MM) - 20 mmADJUSTMENT INCREMENTS - 0.5 MOATOTAL ELEVATION TRAVEL - 100 MOATOTAL WINDAGE TRAVEL - 100 MOAOVERALL LENGTH - 3.1 in (79.90mm)OVERALL WIDTH - 1.5 in (39 mm)HEIGHT - 2.6 in (66.17mm)WEIGHT (OZ) - 4.9 oz (140 g)RETICLE - 2 MOA DotRETICLE COLOR - RedCENTER DOT SIZE - 2 MOAWATERPROOFING - IPX 7BATTERY - (1) CR1623RUN TIME - 20,000 hrsILLUMINATION SETTINGS - 10 Day / 2 NVMOUNT TYPE - 1.41" T10 Torx M1913COLOR - Black