Cyelee Optics Cobra X Pro Reflex Red Dot Sight 1x24x17mm 2 MOA Red Dot/26 MOA Circle Black. It is conservatively rated DROP PROOF for 6' drops optic down on 35oz pistols onto concrete that you might find on the street. The Cobra X PRO red dot is made to fit both the Doctor/Docter footprint as well as the Venom footprint. The sleek taper design allows for easy use for slide serrations while offering a wide window and robust frame. Specifications for Cyelee Optics Cobra X Pro 1x24x17mm Reflex Red Dot Sight: Manufacturer: Cyelee Optics Color: Black Magnification: 1 x Objective Window Size: 24x17 mm Reticle: 26 MOA Circle 2 MOA Red Dot 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: Lithium Metal CR1632 Battery Life: Up to 50000 hours Water Resistance Level: IPX-7 Weight: 40 g Package Type: Box Red Dot Sights-Footprint: Docter Lens Type: Multi Coated Gun Type: Pistol Package Contents: Cyelee Optics Cobra X Pro 1x24x17mm Reflex Red Dot Sight Cyelee Optics X0044B18ZX: Cobra X Pro Reflex Red Dot Sight 1x24x17mm 2 MOA Red Dot/26 MOA Circle Black