The Stoeger M3500 is a 12-gauge semi-automatic shotgun that accepts 2-3/4", 3", and 3-1/2" shells. That shell flexibility makes it useful across a range of hunting applications without swapping guns. 
 

Key Specifications 

• Model Name: M3500 
• Action: Semi-Automatic 
• Caliber: 12 GA 
• Chambered: 2-3/4", 3", and 3-1/2" 
• Capacity: 4 rounds 
• Barrel Length: 28 inches 
• Weight: 7.65 lbs 
• Finish: Bronze 
   

Features 

The inertia-driven semi-auto action cycles fast and is straightforward to maintain. Red-bar sights are integrated into the rib for quick target reference. The bronze finish is more wear-resistant than a standard blued finish and distinguishes this model visually. At 7.65 lbs with a 28-inch barrel it's on the heavier side for a semi-auto field gun, which helps absorb recoil from heavier 3.5-inch loads. 
 

Usage 

The M3500 works well for waterfowl, where 3-inch and 3.5-inch shells are common, and for upland hunting where lighter 2-3/4" loads are more typical. The four-round capacity and fast cycling action suit most hunting scenarios.

Most M3500 bronze owners point to versatility as the main reason they bought it. Being able to run shells from 2-3/4" up to 3.5" without adjustment is a real practical benefit for hunters who switch between game types. The semi-auto action is generally described as reliable and easy to operate.

The bronze finish gets positive comments on looks, and the handling and recoil levels are frequently called out as comfortable.

On the negative side, some users report cycling issues with certain lighter or budget ammunition -- a common trait in inertia-driven semi-autos that need a bit of load weight to cycle reliably. Weight is another recurring mention; 7.65 lbs is manageable but noticeable on long hunts. A few buyers also note that higher-end shotguns in the same price range offer better features or tighter tolerances, which is fair context for anyone comparison shopping.