US Patent 9291416 Locking device for a firearm and firearm

The invention relates to a blocking device for firearms, wherein a locking unit is mounted on the firearm, wherein the locking unit comprises at least one blocking mechanism and at least one activation element, wherein the activation element is coupled to the triggering mechanism of the firearm in such a manner that in a locked position or locked mode of the activation element the triggering mechanism is blocked for triggering a shot, and in an active position or active mode of the activation element the triggering mechanism can be released, wherein the activation element can be brought into the active position or active mode only by using an unlocking element blocked position.