This BSA reflex sight offers excellent situational awareness when shooting. Aluminum construction provides the durability required when operating in tactical environments. Specifications for BSA Optics Illuminated Sights 33x24mm Reflex Sight w/ Laser: Manufacturer: BSA Optics Color: Black Finish: Matte Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 24 mm Objective Window Size: 33x24 mm Illumination Color: Red Brightness Settings: 5 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Parallax: 50 yds Lens Material: Glass Optical Coating: Fully Muticoated Battery Type: CR2 Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Condition: New Magnification Type: Fixed Quantity: 1 Red Dot Sights-Footprint: Not Applicable Mount Type: Weaver Attachment Type: Weaver Features of BSA Optics Reflex Red Dot Sights w/Mount 33x24mm Integrated Red Laser 4 Reticles 5 Brightness Settings Quick Release Picatinny/Weaver Style Mount Unlimited Eye Relief Shockproof W/E Adjustment Range: 35 Ring/Mount Type: One-Piece Weaver Package Contents: BSA Optics Reflex Red Dot Sights w/Mount In Package