The Sauer SL-5 Waterfowl is a 12-gauge semi-auto shotgun chambered for 3.5" shells, with a 28" chrome-lined barrel, inertia-driven action, and digital camouflage finish. The receiver is a steel upper paired with an aluminum lower. 
 

Key Specifications: 

• Brand: Sauer 
• Model Name: SL-5 Waterfowl 
• Caliber: 12 GA 
• Barrel Length: 28" 
• Chamber: 3.5" 
• Action Type: Semi-Auto (Inertia Driven) 
• Capacity: 3+1 RD 
• Sights: LPA Front Bead 
• Stock: Fixed with Rubber Cheek Piece 
• Finish: Digital Camouflage 
• Safety Type: Crossbolt 
   

Detailed Features 

The chrome-lined barrel resists corrosion and cleans up easily after steel shot use. The inertia-driven system cycles reliably with the magnum loads common in waterfowl hunting and keeps parts count low for field cleaning. The extended bolt handle and enlarged release button are usable with hunting gloves on. 
 
The rubber cheek piece absorbs some recoil impulse at the face. The aluminum lower keeps weight down while the steel upper handles bolt and barrel forces. 
 

Usage 

The 3.5" chamber handles full-power steel loads for geese and ducks at longer distances. The digital camo is most effective in marshes with mixed vegetation. The inertia system cycles best with full-power loads. Running light target loads may cause occasional short-cycling.

The Sauer SL-5 Waterfowl 12GA Semi-Auto draws generally positive feedback from waterfowl hunters with a few practical notes.

Most owners like the lightweight feel and the reliable inertia action. The digital camo gets positive mentions for field effectiveness. Build quality is described as solid, and the adjustable stock features are noted as helpful for getting a proper fit. The 3.5" chamber is a selling point for hunters who want flexibility to run heavier loads on geese.

The price is the most common objection. Buyers comparing it to other inertia semi-autos question whether the Sauer premium is justified. Some shooters who primarily run lighter loads note the inertia system isn't as forgiving as a gas gun with reduced loads.