Specification Brand : Ade Advanced Optics BulletPoint1 : Comes with mounting plate that replaces the rear sight dovetail of HK USP and also a standard picatinny mount. The HK USP dovetail has two popular width, one is 12mm, another size is 10mm. This plate fits 12mm dovetail, it does NOT fit the 10mm dovetail unless you grind/file it. Please MEASURE before purchasing. Below is a list of HK USP models come with both size 10mm and 12mm dovetails. HK made the different sizes over different production run. Need to confirm before purchasing. . BulletPoint2 : New advanced battery technology gives up to 2000 hours on bright setting and up to 30k hours on Low setting with a CR2032 Battery(Included) BulletPoint3 : Ade Advanced Optics model RD3-006, RD3-009, RD3-012, RD3-013, RD3-015 are designed to fit the slide/footprint of mounting plate made for Vortex Venom, Burris Fastfire, Meopta, Docter, Insight, Eotech MRDS, Sightmark Minishot. Therefore Ade red dots are compatible for varieties of handguns with appropriate plate that is made for any of those brands. BulletPoint4 : Promotes rapid target acquisition while providing a precise point of aim; getting shots down range and on target fast. Top load System, no need to Remove the sight to change the Battery and re-sight in to waste ammo. BulletPoint5 : 4 MOA dot.Red dot DOES NOT auto power off. It stays on til use manually power off. It has multi brightness level with one adjustment button. Every time you turn on the dot it stays the same B rightness level last time it was turned off. The lowest setting is invisible by human Eye that is for using with a night vision BulletPoint6 : This listing only comes with a picatinny plate.If user has a Springfield OSP(optics ready) model that has a optic cut in front of the rear sight, user need to obtain Springfield provided #01 plate.The springfield official Sku is XD5071, you can obtain that plate from springfield for free. If user has a Non-OSP(non-optics ready) XD, XD MOD.2, XD(M), XDS Pistol, user need to purchase an aftermarket optic plate to replace the rear sight, please search amazon Item Number B087H5GHCR for the plate. Color : Red Department : unisex ExternallyAssignedProductIdentifier : 00805114922466 ItemName : Ade Advanced Optics Zantitium RD3-015 Red Dot Reflex Sight for HK USP Pistol ItemPackageQuantity : 1 ItemTypeKeyword : handgun-scopes Manufacturer : Ade Advanced Optics Material : Alloy Steel ModelName : RD3-013-OSP ModelNumber : PHDS16640P MountingType : Picatinny Mount MountingType1 : Picatinny Mount MountingType2 : Dovetail Mount NumberOfItems : 1 PartNumber : RD3-015+G ProductDescription : Ade Advanced Optics first made its appearance in the firearms accessory industry by doing private label production for several major manufacturers and retailers. During this period, Ade Advanced Optics began receiving requests from numerous customers for access to the affordable, high quality products that Ade Advanced Optics was capable of producing. In 2010, by soliciting feedback from both clients and end users, Ade Advanced Optics was able to overcome the challenges a new company often faces when entering a global market and industry, especially one as competitive as the shooting, hunting, and outdoors industry. ProductSiteLaunchDate : 2019-07-17T19:07:29.128Z SportType : Hunting SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111700