While the adrenaline rush of shooting competitively brings us all together, you deserve an optic that sets you apart, and the Defender-XL will help you take the next step up the podium. Featuring a huge viewing window, combined with edge-to-edge clarity, it provides a truer sight picture, which lets you transition quickly between targets. Protected by our exclusive ShockShield technology, this red dot can stand up to every bump and bruise a stage throws your way. Mount up and stand out with the Defender-XL. Specifications for Vortex Defender-XL 1x Red Dot Sight: Manufacturer: Vortex Color: Black Magnification: 1 x Eye Relief: Unlimited Battery Type: Lithium Metal, CR2032 Quantity: 1 Features of Vortex Defender-XL 1x Red Dot Sight Fast-Rack Textured Grip Battery Compartment Set Screw ShockShield Polymer Insert Parallax Setting Unlimited Eye Relief 25,000 hrs Battery Run Time (@ setting 6) DeltaPoint Pro Mounting Footprint 12 Illumination Settings (10 daylight and 2 NV) Package Contents: Vortex Defender-XL 1x Red Dot Sight Glock MOS Adapter Plate Picatinny Rail Mount Rubber Cover Lens Cloth CR2032 Battery Tool Mounting Screw Sets