EGW Sight Mount Fits Burris FastFire/H&K USP/Viridian RFX25/Vortex Venom/Viper

EGW red dot sights are designed for installation from left to right, with the muzzle oriented forward. The dovetail features a progressive taper to facilitate easier installation. To mount your Vortex Viper/Venom, Burris FastFire or Docter red-dot sight, simply remove the rear sight from your firearm and replace it with the EGW mount. The mount can be removed and the rear sight can be reinstalled at any time. Mounting hardware is included. The EGW H&K USP mount facilitates the installation of Vortex Viper/Venom, Burris Fastfire, or Docter red-dot sights on select H&K USP models by removing the rear sight To install, use the included hardware and a 5/64 inches Allen wrench, it is recommended that a qualified gunsmith verify the setup for accuracy and safety The mount is incompatible with the following models -USP Compact, Expert, Elite, VP9, VP40, P30, P30L, P30SK, HK45, and HK45C