Handguns. 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 Magnification: 1 x Objective Lens Diameter: 23 mm Reticle: 6 MOA Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Click Value: 1 MOA Parallax: Free Battery Type: Lithium Ion, CR2032 Length: 1.83 in Weight: 1.48 oz 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