When you need fast and accurate target acquisition, the Sig Romeo1 Mini Waterproof 1x30 Reflex Sight maintains consistent zero shot after shot. TruHold twin adjustment springs provide a lock-less zeroing system that withstands punishing recoil. The compact size of these Red Dot Sights from SIG SAUER allows low and co-witness mounting. Each unit is CNC -machined from a solid billet of magnesium for lightweight strength. The Sig Romeo1 Mini Fogproof 1x30 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. The molded aspherical lens of the Sig Romeo1 Lightweight 1x30 Mini Reflex Sight is bright and distortion free and the red-notch coating ensures a brilliant red dot. Specifications for SIG SAUER Romeo1 1x30mm Mini Reflex Sight, 3 MOA Dot: Manufacturer: SIG SAUER Color: Black Finish: Matte Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 30 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 Lens Material: Glass Optical Coating: HDX Battery Type: CR1632 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 Gun Make: SIG Sauer Gun Model: SIG Sauer P320 RX Length: 1.8 in Width: 1.3 in Height: 1.1 in Weight: 0.8 oz Included Accessories: No Magnification Type: Fixed Attachment/Mount Type: Picatinny Features of SIG Romeo1 Mini 1x30 Reflex Sight, Auto Off: Available with a universal mount with rear sight dovetail adapters for the most popular handguns on the market Available with either an M1913 Picatinny or KeyMod Rail interface for use with today’s MSR platforms 3 or 6 MOA RedDot with multiple intensity settings ensures rapid target engagement under a full range of lighting conditions MOTAC™ (Motion Activated Illumination) powers up when it senses motion and powers down when it does not provides for optimum operational safety and enhanced battery life Tested to maintain its zero at over 10,000 rounds of 230 grain, .45 ACP. Available in Pistol Adaptor Pack. The readily available CR1632 battery is toploading, allowing for quick battery replacement without having to remove the sight from the firearm Extremely strong and lightweight CNC Magnesium housing ensuring a lifetime of reliable service Dependable waterproof (IPX7 rated for complete immersion up to 1 meter) and fogproof performance Package Contents: Sig Romeo1 1x30 Mini Reflex Sight