The Weatherby 18i is a 12-gauge semi-automatic shotgun with an inertia recoil operating system, Mossy Oak camo finish, and a 3" magnum chamber. At 7.1 lbs. and 49.25 inches overall, it's a full-size field gun built for waterfowl and upland hunting. The shim-adjustable polymer stock lets shooters dial in drop and cast for a proper fit, and the elastomer recoil pad takes the edge off heavier loads. 
 

Key Specifications 

• Model: 18i 
• Caliber: 12 GA 
• Barrel Length: 28 inches 
• Capacity: 4+1 (2+1 with included magazine limiting plug) 
• Weight: 7.1 lbs 
• Overall Length: 49.25 inches 
• Chamber: 3" Magnum 
• Sights: LPA Fiber 
   

Features 

The inertia system cycles quickly and stays cleaner than gas-operated designs, a real benefit when hunting in wet conditions. The ergonomic textured grip maintains control when things get muddy or wet. A full-length ventilated top rib aids sight alignment and helps balance the gun through the swing. 
 
Includes five Crio Plus choke tubes (cylinder, improved cylinder, modified, improved modified, full), a choke case, and a choke wrench.

The 18i Waterfowler gets solid marks from hunters for its reliability in cold, wet conditions. The inertia system handles varied loads without complaint. Ergonomics come up often: the adjustable stock and textured grip make it comfortable for a wide range of shooters, and most find it easy to shoulder and swing.

The Mossy Oak camo finish holds up in the field and blends well in typical waterfowl environments. Weight divides opinions; at 7.1 lbs. it's on the heavier end, which some appreciate for steadiness on longer shots while others prefer something lighter for all-day carry. Value relative to other semi-autos in its price range is generally seen as fair. Customer service experiences have been mixed, with some owners reporting quick support and others noting slower response times.