The Iver Johnson Arms IJ500 is a semi-automatic shotgun chambered in 12 Gauge with a 3.5-inch chamber and a 28-inch ventilated rib barrel. It has a 4+1 round capacity and comes dressed in MAX-5 Camo synthetic furniture. The CT-5 choke system is included with the package. 
 

Key Specifications 

• Brand: Iver Johnson Arms 
• Model: IJ500 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 4+1 
• Barrel Length: 28" 
• Color/Finish: MAX-5 Camo 
   

Detailed Features 

• 3.5" chamber handles full magnum loads 
• 28" ventilated rib barrel with CT-5 choke tube system 
• MAX-5 Camo synthetic stock and forend 
• 4+1 round capacity

Owners of the IJ500 tend to appreciate Iver Johnson Arms' return to the market with a field-ready semi-auto at an accessible price point. The MAX-5 camo pattern gets positive mentions from waterfowl hunters who want a gun that blends into marsh and timber environments without paying a premium.

The 3.5-inch chamber capability draws attention from hunters who want flexibility across different load types in a single gun. Some owners note the action can feel stiff initially and benefits from a break-in period with higher-brass shells before cycling lighter loads reliably.

Value perception is generally good for the price tier, though a few owners flag that fit and finish on the synthetic furniture is workmanlike rather than refined. Aftermarket support for the IJ500 is limited, which matters to buyers who like to customize.