The Benelli M4 Tactical is a 12-gauge semi-automatic shotgun with an 18.5-inch barrel, 7+1 round capacity, and ghost-ring rear sight with post front sight. It accepts 2 3/4" and 3" shells. 
 

Key Specifications 

• Model: M4 
• Caliber: 12 Gauge 
• Action Type: Semi-Auto 
• Barrel Length: 18.5 inches 
• Overall Length: 40 inches 
• Weight: 8.4 lbs (Average) 
• Capacity: 7+1 rounds 
• Stock Configuration: Tactical 
• Grip Type: Pistol Grip 
• Receiver Finish: Anodized Black 
• Barrel Finish: Matte Blued 
• Sights: Ghost-ring rear sight with post front sight 
• Chambered For: 2 3/4" and 3" shells 
• Threaded Barrel & Drilled/Tapped for Accessories 
   

Detailed Features 

The M4 uses an autoregulating gas system that cycles reliably with a wide range of loads, from light target loads to 3-inch magnum shells, without manual adjustment. Oversized controls for the bolt handle, bolt release, and safety allow operation under stress or with gloves. The ghost-ring rear sight and post front sight provide fast target acquisition at typical defensive distances. Length of pull adjusts to 14 3/4 inches with drops at heel and comb set for consistent cheek weld. The barrel is threaded and the receiver is drilled and tapped for accessories. 
 

Usage Scenarios 

• Home defense: 7+1 capacity and fast semi-auto cycling with the ghost-ring sight system. 
• Law enforcement or tactical applications: the oversized controls, 12-gauge stopping power, and robust gas system support high-stress use. 
• Competitive shotgun shooting where a reliable, adjustable semi-auto platform is needed.

The Benelli M4 Tactical is consistently described as a reliable semi-automatic shotgun built to a high standard. Owners focus primarily on the autoregulating gas system's ability to cycle different load types without adjustments, which is a practical advantage in defensive and field use compared to inertia-driven designs.

Build quality is praised across the board. The anodized aluminum receiver and matte-blued barrel hold up to sustained use, and the oversized controls are functionally useful in high-stress scenarios.

Versatility across uses is a common theme. Owners run the M4 for home defense, competition, hunting, and training. The adjustable stock and Picatinny rail accessories let users configure it for specific purposes.

The main criticism is weight. At 8.4 lbs the M4 is heavier than many semi-auto shotguns, and buyers who need to carry it for extended periods weigh this against the durability and reliability advantages. The price is the most consistent friction point: the M4 is among the more expensive tactical semi-auto shotguns available, and most discussions advise prospective buyers to think carefully about budget and intended use before committing.