Vortex Optics OPMOD Defender-ST 1x Reflex Micro Red Dot 6 MOA Dot Tan. Shotguns. Offset on a carbine. Whether running drills at the range or holding the line during rigorous duty use the all-purpose Defender-ST delivers the toughness accuracy and adaptability your challenging world needs. Specifications for Vortex Optics OPMOD Defender-ST 1x Reflex Micro Red Dot: Manufacturer: OPMOD Color: Tan Fabric/Material: Polymer 7075 Aluminum Magnification: 1 x Objective Lens Diameter: 23 mm Reticle: 6 MOA Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Parallax: Free Battery Type: CR2032 Lithium Ion Battery Quantity: 1 Battery Life: 25000 hours Weather Resistance: Waterproof Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Length: 1.83 in Weight: 1.48 oz Magnification Type: Fixed Red Dot Sights-Footprint: Not Applicable Features of Vortex Optics OPMOD Defender-ST 1x Reflex Micro Red Dot Delta Point Pro Footprint Window Size 23mmx20mm Large Viewing Window Aspherical Lens Motion Activation with 10 minute Auto-Shutoff ShockShield Polymer Insert Fast-Rack Texturing Top Mount Battery 10 Daylight Bright Brightness Settings Parallax Free Unlimited Eye Relief Night-Vision Compatibility Waterproof Shockproof Fogproof Low-Glare Matte Tan Anodized Single-Piece Chassis Package Contents: Vortex Optics OPMOD Defender-ST 1x Reflex Micro Red Dot Picatinny Mount Custom Tool Most Common Mounting Screw Sets Lens Cloth CR2032 Battery Rubber Cover Glock MOS Plate