The Benelli M2 Field is a 12 GA semi-automatic shotgun built around an inertia-driven piston system. It weighs 6.6 lbs, has a 26-inch barrel, and holds 3 rounds plus one in the chamber. The synthetic stock and black anodized finish handle moisture and weather without the maintenance demands of wood. 
 

Key Specifications 

• Model: M2 Field 
• Gauge: 12 GA 
• Action: Inertia-driven piston (Semi-Auto) 
• Capacity: 3 rounds (+1 in chamber) 
• Barrel Length: 26 inches 
• Weight: 6.6 lbs. 
• Finish: Black anodized 
• Stock Material: Synthetic 
   

Detailed Features 

1. Inertia-driven Piston System: Cycles reliably across a wide range of loads, from light target loads to heavy hunting shells. Fewer moving parts than gas systems means less cleaning between sessions. 
    
2. Lightweight Construction: 6.6 lbs is genuinely light for a full-size semi-auto, carries well on long hunts. 
    
3. Crio Choke System (C, IM, F): Three interchangeable Crio chokes let you tailor the pattern for trap, sporting clays, or upland game without swapping guns. 
    
4. Synthetic Stock: Moisture-resistant and dimensionally stable in temperature swings. 
    
5. Red-bar Front Sight: Fast to pick up in bright conditions or on moving targets.

The Benelli M2 Field Gen 3 has a strong reputation for cycling smoothly with a wide variety of loads, from light 1-oz target rounds to heavy 3-inch hunting shells, which is the main thing buyers care about in a semi-auto field gun. Most owners report it just runs.

The lightweight build and ergonomic synthetic stock make it comfortable to carry during long days afield. Durability holds up well in wet or dirty field conditions.

The main hesitation is price. The M2 sits at a higher cost than many semi-auto competitors, and some buyers feel that gap is significant. A few new-to-semi-auto owners mention a short learning curve on maintenance and loading, though it's not considered a complex gun by experienced shooters.