When you need fast and accurate target acquisition, choose the Sig Romeo3 Mini Waterproof 1x25mm Reflex Sight to maintain a consistent zero shot after shot. The compact size of these Red Dot Sights from SIG SAUER allows low or co-witness mounting. Each unit is CNC-machined from aircraft grade aluminum for lightweight strength. The Sig Romeo3 Mini Fogproof 1x25mm Reflex Sight is equipped with MOTAC (Motion Activated Illumination) to power off when the unit isn't moving to save battery power, yet still remember your last brightness setting next time you turn it on. Spectracoat lens coatings and 11 illumination settings combine to give you ultra clear daylight and night vision images from the Sig Romeo3 Lightweight 1x25mm Mini Reflex Sight. Specifications for SIG SAUER Romeo3 Mini Reflex Sight w/Riser, 1x25mm, 3 MOA Red Dot Reticle: Manufacturer: SIG SAUER Color: Graphite Finish: Matte Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 25 mm Objective Window Size: 25 mm Reticle: 3 MOA Dot Illumination Type: LED Illumination Color: Red Brightness Settings: 10 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Lens Material: Glass Optical Coating: HDX Battery Type: CR2032 Battery Quantity: 1 Battery Life: 40000 hours Operating Temperature: -40 - 140 Fahrenheit Weather Resistance: Yes Water Resistance Level: IPX-7 Water Resistant Mark: 400 m Shockproof: Yes Fogproof: Yes Length: 2.4 in Height: 2.6 in Weight: 1.4 oz Included Accessories: Riser Condition: New Magnification Type: Fixed Mount Type: Picatinny Attachment Type: Picatinny Features of SIG Romeo3 Miniature 1x25mm Reflex Sight With Riser SOR31002: MOTAC motion sensing technology immediately powers up illumination when it senses motion and powers down when it does not, to extend battery life. Spectracoat ultra wide broadband anti-reflection lens coatings reduce surface reflections to extremely low levels across the entire visible spectrum, providing superior light transmission. Stealth ID deflection armor trapezoidal surfacing breaks up the shape and visibility of the optic along with pistol slide serrations and grip checkering. Proprietary red-notch coating ensures a bright red dot Maintains confident zero 9 daytime illumination settings 2 night vision illumination settings Unlimited eye relief Side-loading battery so batteries can be replaced without removing unit from firearm IPX-7 waterproof rating for complete water immersion up to 1 meter Fogproof Covered by the SIG SAUER Infinite Guarantee and Electronics Limited Warranty. Package Contents: Sig Romeo3 Miniature 1x25mm Reflex Sight w/ Riser, Fogproof SOR31002 M1913 Picatinny low-rise mount QD 1.41in. co-witness riser mount