Comes with mounting plate for HK USP and also a standard picatinny mount. Fully shockproof and fogproof. Waterproof guranteed for 30 minutes under 1.7feet Lenses are precision ground and polished to exacting geometries to virtually eliminate parallax and to provide a very clear, crisp sight picture Fully windage and elevation adjustable and lockable 5 MOA 5 Illumination Settings. Powered by a lithium CR2032 battery(Included) Magnification: 1X Sight Window: 25mm x 16mm; .98″ x .62″ Elevation Adustment Range: 3° or 190″ @ 100 yds (524 cm @ 100 m) Windage Adjustment Range: 3° or 190″ @ 100 yds (524 cm @ 100 m) Set Value for One Scale Division: 1 MOA or 1″ @ 100 yds with 60 scale divisions per turn Subtension of the Aiming Dot: 4 MOA (10.5 cm @ 100 m) Parallax-Free Sighting Distance: approx. 50 yds Recoil Resistance: At least 1000 Gs Operating Temperature Range: -10°F to +130°F (-25°C to +55°C) Storage Temperature Range: -40°F to +160°F (-40°C to +70°C) Power Supply: 3V with one CR 2032 Lithium battery Dimensions: L 2.0″ x W 1.0″ x H 1.1″ (52 mm x 26 mm x 28 mm) Weight (in operating condition without mounting materials): 0.9 oz (25 g). Included: Allen wrench to tighten fasteners Screwdriver Adjusting disc Protective cap 3V Lithium battery (CR 2032) Operating instructions Weaver/Picatinny-style mount Mounting plate for HK USP Extra rubber sealing ring for battery compartment Ade Advanced Optics 3 Year USA warranty