These mounts allow any generation FastFire(TM) Series red dot sight to be securely mounted on a specific firearm. Options are available for mounting to handguns" rifles" and shotguns" which each have different mounting requirements. Also fits the Doctor mini red dot and Vortex Viper and Vortex Venom Red Dot sights. Will also fit the Sightmark Mini Shot M-Spec FMS.
