The Benelli M4 Tactical is a semi-automatic 12-gauge shotgun with an 18.5-inch barrel and a 7-round tube magazine. It runs on Benelli's ARGO (Auto-Regulating Gas-Operated) system, which cycles a wide range of loads reliably without adjustment. The aluminum receiver and synthetic stock keep weight at 8.4 lbs while holding up to hard use. 
 

Key Specifications 

• UPC: 650350117103 
• Action Type: Semi-Automatic 
• Barrel Length: 18.5 inches 
• Capacity: 7 rounds 
• Gauge: 12 GA 
• Weight: 8.4 lbs 
• Finish: Black Anodized with Phosphate barrel finish 
• Front Sight: Post 
• Rear Sight: Ghost Ring 
• Magazine Type: Tube (1 magazine included) 
• Material: Aluminum body with synthetic stock 
   

Features 

 
The ghost ring rear sight and post front sight give a clear, fast sight picture in low light — a practical choice over bead sights for anything other than bird hunting. The muzzle accepts choke tubes, so you can dial in shot spread for different uses. The 18.5-inch barrel keeps the overall length manageable for interior spaces without sacrificing much ballistic performance.

The Benelli M4 Tactical has a strong reputation among shooters who have run it hard. Semi-auto reliability across a wide range of shell types is the most-cited strength, and the ghost ring sights get consistent positive mention for target acquisition speed.

Build quality is generally praised — the fit and finish feel solid and the ARGO gas system requires less cleaning than piston-driven competitors. The main sticking points are price and weight. At 8.4 lbs unloaded, it is one of the heavier semi-auto 12-gauges in its class, and the cost puts it above most competitors, which some potential buyers weigh carefully.

Overall the sentiment among owners is positive, particularly among those who prioritize reliability in a defensive or duty context over lighter weight or lower cost.