Trigger arrangement

A trigger arrangement in an automatic weapon operable in either a single-shot mode or a continuous-firing mode, comprising:

• a hammer including a first stop and a second stop, and a percussion spring operably connected to the hammer permitting movement from a fully tensioned position to a relaxed position;
• a movable breechblock disposed to permit movement of the hammer from the relaxed position into the fully tensioned position;
• a releasing arrangement, controlled by the breechblock, and cooperating with the first stop of the hammer in the continuous firing mode;
• a pivotably mounted trigger having an engagement lug disposed at one end, the trigger being biased by a trigger spring to a rest position, and being actuatable, against the action of the trigger spring, from the rest position into a depressed position;
• a firing lever mounted about an axis of rotation, having one end disposed to engage the second stop of the hammer, and an opposed end disposed to engage the trigger engagement lug in the single-shot firing mode, the lever being swingably and slidably retained by a lever spring arrangement operable to rotate the lever into re-engagement with the second stop after the trigger is actuated;
• and
• a shift-over arrangement operable to move the weapon between the single-shot mode and the continuous-firing mode, the shift-over arrangement including an engagement element for engaging the firing lever to restrict movement thereof to prevent engagement of the firing lever with the second stop notch in the continuous-firing mode.