Cyelee Optics Ghost HDG Reflex Red Dot Sight 1x26.5x22.5mm 2 MOA Dot/26 MOA Circle Black. It is conservatively rated DROP PROOF for 6' drops optic down on 45oz pistols onto concrete that you might find on the street. The GHOST HDG red dot utilizes an oversized glass with a width of 26.5mm delivering a significantly larger field of view. It has the Click MOA system with 1MOA per click. It has a Variable Reticle Technology (VRT) 2MOA red dot 24MOA Circle or both. Specifications for Cyelee Optics Ghost HDG 1x26.5x22.5mm Reflex Red Dot Sight: Manufacturer: Cyelee Optics Color: Black Fabric/Material: 7075-T6 Aluminum Magnification: 1 x Objective Window Size: 26.5x22.5 mm Reticle: 2 MOA Dot 26 MOA Circle Illumination Type: LED Illumination Color: Red Brightness Settings: 10 Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Open Parallax: Parallax Free Battery Type: CR1632 Lithium Metal Battery Life: Up to 50000 hours Water Resistance Level: IPX-7 Weight: 60 g Package Type: Box Red Dot Sights-Footprint: RMR Lens Type: Multi Coated Gun Type: Pistol Package Contents: Cyelee Optics Ghost HDG 1x26.5x22.5mm Reflex Red Dot Sight Cyelee Optics X0044ECYKX: Ghost HDG Reflex Red Dot Sight 1x26.5x22.5mm 2 MOA Dot/26 MOA Circle Black