These Vortex Venom Red Dot Sights feature large, bright red dot reticles and 10 brightness settings for clear targeting in any light levels or background colors. These Red Dot Sights from Vortex Optics have easy-to-use power and illumination controls on the left side, allowing you to make adjustments on the fly without changing your sighting position. The battery loads from the top on the Vortex Venom Reflex Sight, so you can change batteries without removing the sight from your firearm. Vortex Venom Red Dot Reticle are rugged enough to stand up to recoil and the minimalist design ensures they can work with a shotgun, rifle, or handgun. Specifications for Vortex Venom 1x26.5mm Red Dot Sight: Manufacturer: Vortex Color: Black Fabric/Material: Aluminum Alloy Chassis Magnification: 1 x Objective Lens Diameter: 26.5 mm Illumination Color: Red Brightness Settings: 10 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Parallax: Parallax Free Lens Material: Glass Optical Coating: Fully Multi-Coated Battery Type: CR1632 Battery Quantity: 1 Battery Life: 150 - 30000 hours Operating Temperature: 22 - 122 Fahrenheit Water Resistance Level: Waterproof Water Resistant Mark: 1 m Shockproof: Yes Length: 1.9 in Width: 1.11 in Height: 1.02 in Weight: 1.1 oz Package Type: Box Magnification Type: Fixed Lens Finish: ArmorTek Brightness Index: 10 Quantity: 1 Attachment/Mount Type: Picatinny Gun Type: Rifle, Pistol, Shotgun W/E Travel at 100 Yds: 100 MOA Front Sight Color: Red Features of Vortex Venom 1x26.5mm Red Dot Sight: Fully Multi-Coated: Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces; Premium Wide-Field Lens: Exceptional edge-to-edge resolution; Brightness Settings: Choose between 10 levels of brightness in manual mode or switch to auto mode; Unlimited Eye Relief: Non-critical eye relief for rapid target acquisition Package Contents: Vortex Venom 1x26.5mm Red Dot Sight Weaver.Picatinny mount T 15 Torx wrench Rain cover Lens cloth Mounting screws CR 1632 battery Screwdriver Vortex VIP Warranty The Vortex VIP warranty is about you, not us. It's about taking care of you after the sale. VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective-at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. You see, it doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all Vortex Optics Rifle Scopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods, and monoculars. Unlimited Lifetime Warranty Fully transferable No warranty card to fill out No receipt needed to hang on to If you ever have a problem, no matter the cause, we promise to take care of you Note: The VIP Warranty does not cover loss, theft, deliberate damage or cosmetic damage that does not hinder the performance of the product.