Shield Sights OMSx Open Mini XL 1x30mm Reflex Red Dot Sight 4 MOA Black. The OMSx differentiates itself from our Mini-Sight range through an 80percent increase in lens area significantly expanding the field of view while maintaining a true to color distortion free optical image. The enlarged viewing window enhances dot tracking target transitions and situational awareness during high speed stages. Featuring SHIELDs translucent roof architecture first implemented on the OMSsc the OMSx delivers an unrestricted sight picture with almost zero visual obstruction. Specifications for Shield Sights OMSx Open Mini XL 1x30mm Reflex Red Dot Sight: Manufacturer: Shield Sights Color: Black Finish: Matte Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 30 mm Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Lens Material: Glass Battery Type: CR2032 Lithium Metal Battery Life: 20000 hours Water Resistance Level: IP67 Water Resistant Mark: 3 ft Length: 1.61 in Width: 1.34 in Height: 1.07 in Weight: 1 oz Package Type: Box Red Dot Sights-Footprint: RMSc Features of Shield Sights OMSx Open Mini XL 1x30mm Reflex Red Dot Sight Mounts to SHIELDs famous footprint Transparent acrylic hood for unobstructed view Utilizes SHIELDs patented mechanism enabling co-witnessing with standard iron sights considerably reducing training times and costs The mechanism uses no click adjustment making it infinitely more accurate when zeroing Octagon-shaped crystal-clear lens with no filters to disturb the image of the world through the sight Machined from aerospace-grade aluminium to extremely precise tolerances while maintaining an attractive modern-looking optic Auto brightness adjustment so it can always be on and ready 20000 hours in average daylight with a CR2032 Package Contents: Shield Sights OMSx Open Mini XL 1x30mm Reflex Red Dot Sight 1 x Mini dial 1 x CR2032 battery 1 x 1 degree shim 2 x Button head M4x8mm screws 2 x Button head M4x10mm screws 1 x 1.5 Hex wrench tools 1 x 2.5 Hex wrench tools 4 x 0.5mm Nylon washers 1 x Reeces Law Battery Cover 2 x Battery stickers 2 x Shield Target Stickers 1 x RMSx Cover Shield Sights OMSx-4MOA-GLASS: OMSx Open Mini XL 1x30mm Reflex Red Dot Sight 4 MOA Black