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 Product Features Ideal for Competition Shooting Comes with Glock MOS Adapter Plate and Picatinny Rail Mount Bright Red Dot with 25,000 Hours Battery Run Time Product Specifications Manufacturer: Vortex Model: DFXL-MRD5 Dot Size: 5 MOA Battery Type: CR2032 Eye Relief: Unlimited Magnification: 1X Footprint: DeltaPoint Pro Adjustment Graduation: 1 MOA Travel per rotation: 25 MOA Total Elevation Adjustment: 120 MOA Total Windage Adjustment: 115 MOA Parallax Setting: Parallax Free Length: 2.03" Weight (With Battery): 1.93oz