What is the locking system of the Benelli M4 Super 90?

What is the locking system of the Benelli M4 Super 90?

• A. Gas tappet, Semi-automatic only
• B. Piston system
• C. Manual locking
• D. Hydraulic

Answer: (A)

The Benelli M4 uses a gas-operated, tappet-type action. When a round fires, gas is directed to a tappet that acts as a small piston to drive the bolt carrier rearward. This movement unlocks the rotating bolt, allows extraction and ejection, then the return spring pushes the bolt forward to chamber the next round. This cycle happens automatically, so it’s designed for semi-automatic fire only. The system is not manual or hydraulic, and while it’s a gas-driven mechanism, the specific term used for Benelli’s design is “gas tappet.”

The Benelli M4 uses a gas-operated, tappet-type action. When a round fires, gas is directed to a tappet that acts as a small piston to drive the bolt carrier rearward. This movement unlocks the rotating bolt, allows extraction and ejection, then the return spring pushes the bolt forward to chamber the next round. This cycle happens automatically, so it’s designed for semi-automatic fire only. The system is not manual or hydraulic, and while it’s a gas-driven mechanism, the specific term used for Benelli’s design is “gas tappet.”