EYES SEE GREEN BETTER The RFX 11 is the next in a long line of purpose-built, high quality, and highly visible aiming devices from Viridian. Its tiny size is at home on any optics-cut concealed carry pistol or as a close-range offset sight on your rifle. At a mere 4 ounces, the RFX 11 is one of the lightest reflex sights on the market. Packed with features including a highly visible and efficient Viridian green 3 MOA dot, INSTANT-ON and auto shut off, ambient light sensor and over 30k hours of run time make the RFX 11 a must have for any firearm. Footprint:Â Shield RMScDimensions:Â 1.6" x 0.95" x 0.89"Lens Dimension:Â 16mm x 22mmEye Relief:Â UnlimitedLens Coating:Â Multi Coated GlassMaximum Adjustment:Â 90 MOAReticle:Â 3 MOA GreenPower Source:Â 1 x CR2032Battery Life:Â 30,000 hours (middle setting)Settings:Â Automatic Brightness ControlOperation:Â Instant-On with Ambient Light SensorDimensions:Â 1.6"(L) x 1.0"(W) x 0.9"(H)Weight:Â 0.44oz / 12.47 gramsHousing Material:Â High Strength Thermomolded PolymerEnvironmental:Â IPX4Operating Temperature:Â -4F to 130FWarranty:Â Limited Lifetime