The Benelli M4 EXT 12‑gauge is a rugged, combat‑proven tactical shotgun built around Benelli’s ARGO® short‑stroke, dual‑piston gas system for ultra‑reliable semi‑automatic operation. It ships with an 18.5" smoothbore, cylinder‑bore (tactical) barrel—typically chrome‑finished—and a 3.00‑inch chamber that accepts up to 3" shells. The gun features a pistol‑grip, telescoping synthetic stock for quick shoulder weld and adjustable length of pull, plus an integrated Pic rail and ghost‑ring sights for fast target acquisition. Designed for duty and home‑defense use, the M4 EXT balances durability, controllability, and rapid follow‑up shots in a compact, service‑oriented package.