The Benelli M4‑A1 14″ + Door‑Breacher model is a compact, semi‑automatic 12-gauge shotgun tailored for close-quarters operations:

• Action: Semi‑automatic, using Benelli’s renowned Auto‑Regulating Gas‑Operated (A.R.G.O.) system—short-stroke piston design for reliability.

• Barrel: 14″ (355 mm) – ideal for maneuvering in tight spaces .

• Chamber: Capable of handling 3″ magnum shell.

• Magazine Capacity: 5 standard or 4 magnum shells, plus 1 in the chamber.

• Stock: Polymer telescoping stock adjustable across 5 positions; collapses to 121 mm.

• Length & Weight:

  • Total length with compensator: 982 mm extended, 870 mm retracted.

  • Without compensator: 892 mm extended, 780 mm retracted.

  • Unloaded weight: ~3720 g (3.72 kg) .

• Finish: Black anodized receiver with a Ni‑Cr‑Mo hammer-forged barrel featuring chrome lining and blued exterior .

• Sights & Rails: Combines fiber-optic ghost-ring sights with a red-dot holographic sight co-witnessed on a Picatinny rail .

• Safety & Controls:

  • Mechanical safety on trigger plus an automatic disconnector.

  • Cut-off for rapid cartridge replacement and red cocked-hammer indicator.

• Trigger: Pull weight between 30–36 N (3.0–3.6 kg).

• The Benelli M4‑A1 14″ is a tough, compact combat shotgun respected in military and tactical communities. Its A.R.G.O. system and modular design make it a field-proven platform. However, it’s not without quirks—magazine limits, ergonomics, and loading ergonomics have drawn criticism from some owners. Fortunately, plenty of aftermarket upgrades exist to tailor the shotgun to individual preferences.