The Vortex Riser Mount Red Dot with Quick Release is an essential part to attach your Vortex Razor Red Dot, Vortex Viper Red Dot or Vortex Sparc to your AR-15 rifle. With the AR-15 Riser Mount, the Red Dot is placed 15.3 mm upwards and you have 1/3 cowitness with the Razor & Viper Red Dot and complete cowitness with the Sparc Red Dot. The auto lock lever system makes it possible to mount the mount without tools and it can be adjusted using your finger or a screwdriver. The Quick Release lever can be locked forwards or backwards.
In the picture below an explanation of cowitness and 1/3 cowitness on your AR-15 rifle.
The Vortex Riser Mount Red Dot QR A-15 is used to mount your Vortex Razor Red Dot, Vortex Viper Red Dot or Vortex Sparc on your AR-15 rifle.