Benelli M4 12 Gauge Semi-Auto, 18.5 in Barrel, 7+1 Capacity, ARGO Gas System, 2022 Italian Proof, Custom Forend and Controls
This Benelli M4 is an Italian-made, 2022-proofed 12 gauge with the Auto-Regulating Gas-Operated (ARGO) system, a full-length 7+1 tubular magazine, and an 18.5 in steel barrel. It features notable user-driven upgrades including an extended forend with an accessory rail and hand-stop, an extended knurled charging handle, an enlarged bolt-release pad, and a ported muzzle brake/compensator. Factory ghost-ring iron sights and a receiver-top Picatinny rail are present, along with a telescoping synthetic stock with a pistol grip and rubber buttpad.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The barrel exterior, charging handle, and other small parts show rust and pitting. Adhesive residue is present under the pistol grip. The stock extends but does not lock in the extended position.
What’s Included
- Adjustable two-point sling (coyote tan)
- Receiver-mounted elastic shell card with hook-and-loop backing (tan), installed
Benelli’s ARGO system on this M4 uses dual short-stroke pistons and a rotating bolt, paired with a receiver-top Picatinny rail and a ghost-ring rear sight. The barrel is marked 12 GA 3 in (76 mm) for 2 3/4 in or 3 in shells, supporting versatile load selection.
The shotgun carries purposeful upgrades: an extended forend/handguard with an accessory rail section and a small hand-stop, an extended knurled charging handle for confident grasp, and an enlarged bolt-release pad for rapid manipulation. A ported muzzle brake/compensator is installed at the muzzle.
Sighting equipment consists of a protected front post and a ghost-ring rear sight. The full-length tubular magazine provides a 7+1 capacity, and the matte black aluminum-alloy receiver and matte black finish throughout present a consistent, duty-style appearance.
The stock is a telescoping synthetic unit with a pistol grip, rubber buttpad, and adjustable length of pull measured at 9.5 in. These features, along with the extended controls and upgraded forend, emphasize practical handling and accessory placement.
Markings include the model designation “M4,” “Benelli Armi System” on the bolt carrier, and barrel legends indicating manufacture in Italy by Benelli Armi S.p.A. (Urbino). The IT22 proof/date code identifies 2022 production/proof.