The SCS (Solar Charging Sight) is designed for the H&K VP9 optics ready handguns. It is designed to attach directly to the slide without an adapter plate and uses our solar charging system with multidirectional light sensors to automatically adjust brightness. The SCS can potentially operate indefinitely using an internal, rechargeable 20,000-hour battery meaning you will never need to change batteries again. Included is an intensity override function which locks the optic into a high brightness mode for 30 minutes. Specifications for Holosun SCS Solar Charging Sight for Heckler & Koch: Manufacturer: Holosun Color: Black Finish: Anodize Magnification: 1 x Objective Lens Diameter: 0.58 - 0.77 in Objective Window Size: 0.58x0.77 cm Reticle: 32 MOA Circle, 2 MOA Dot Illumination Type: LED Illumination Color: Green Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Open Parallax: Yes Battery Type: ML1220, Lithium Metal Battery Life: Unlimited hours Operating Temperature: -60 - -30 Celsius Water Resistance Level: IP68 Gun Make: Heckler & Koch Weight: 1.35 oz Condition: New Vibration: 5000G Storage Temperature: -40 - -70 Celsius Housing/Frame Material: 7075 T6 Aluminum Coating: Multi Wavelength: 540 nm Features of Holosun SCS Solar Charging Sight for Heckler & Koch Solar Failsafe™ Solar Failsafe Technology is one of many innovations featured on solar-equipped Holosun optics. With Solar Failsafe, if your battery fails you always have a backup power source when natural or artificial light is available. Solar Failsafe is activated while in Auto Mode where reticle intensity is automatically adjusted based on the amount of light the solar cell receives. In brighter conditions you have a brighter reticle and in lower-light conditions the reticle will step down in intensity to match any lighting conditions. On models equipped with a super capacitor, it is possible to run the optic, indefinitely, in daytime and night conditions, by maintaining a charge through the Solar Failsafe System all without a battery. Multiple Reticle System Multi-reticle System (MRS) equipped Holosun optics allow you to determine the type of aiming point you want to use when you want to use it. Holosun optics equipped with MRS let you select a fast sight picture for shorter distances with a 65 MOA circle with 2 MOA dot (rifle optics) or a 32 MOA circle with 2 MOA dot (handgun optics). The large circle can help you obtain a sight picture faster, allows for a hold-over reference, and helps to guide your eye to the 2 MOA dot. The large ring can be deactivated leaving just the 2 MOA dot for an uncluttered sight picture and increased precision. Regardless of your application, Holosun’s Multi-reticle System offers the ultimate in optical sight customization for sportsman and professional users alike. Super LED Holosun Super LED technology includes Red, Green, and our latest Gold Dot LEDs providing options that match various environments and personal preferences including red/green color blindness with our Gold Dot. Super LED technology provides a versatile range of reticle intensity settings from night vision-compatible to daylight bright. Holosun Super LEDs have ultra-efficient power usage creating battery like as high as 50,000 hours on certain models. Our Super Green LED is designed to match the wavelength of light that the human eye is most reactive to. Multilayer Reflective Glass Holosun’s use of Grade 5 Titanium in certain Elite category optics and laser devices results in unparalleled strength and durability. Holosun Grade 5 Titanium has more than double the tensile strength and has five-times the fatigue strength of 7075 Aluminum. Grade 5 Titanium is also able to withstand the corrosiveness of seawater making Holosun Titanium model optics and lasers suitable for use in maritime environments. Package Contents: Mounting Screws Lens Cloth User Manual Multi Tool Items Dimensions (in inches)