Vortex Viper Shotgun Enclosed 1x Micro Reflex Red Dot Sight Green Multi-Reticle Black. Its enclosed design and integrated universal mount ensures seamless operation and maximum protection against the elements. Specifications for Vortex Viper Shotgun Enclosed 1x Micro Reflex Red Dot Sight: Manufacturer: Vortex Color: Black Fabric/Material: 6061 Aluminum Magnification: 1 x Illumination Type: LED Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Enclosed Parallax: Free Battery Type: Lithium Metal CR2032 Battery Life: 50000 hours Shockproof: Yes Fogproof: Yes Length: 4.86 in Weight: 2.14 oz Magnification Type: Fixed Features of Vortex Viper Shotgun Enclosed 1x Micro Red Dot Reflex Sight Integrated Universal Mounting System. For drilled and tapped shotgun receivers. Enclosed Aluminum Housing. Durable 6061 aluminum enclosed housing protects against debris and moisture. Large Viewing Window. For fast target acquisition and large field of view. Multi-Reticle Option. Quickly adapts to diverse shooting situations. Package Contents: Vortex Viper Shotgun Enclosed 1x Micro Red Dot Reflex Sight Rubber Cover Custom Tool CR2032 Battery Lens Cloth Most Common Mounting Screw Sets Vortex VPR-SGMGD3-MR-E: Viper Shotgun Enclosed 1x Micro Reflex Red Dot Sight Green Multi-Reticle Black