The Mossberg Cartridge Stop For 12ga, 20ga Mossberg 500 is a factory replacement part engineered to keep your shotgun feeding reliably. Designed specifically for the Mossberg 500 family, including select 590 and 590A1 models, this cartridge stop helps restore smooth, consistent cycling when your original component is worn or damaged.

This replacement cartridge stop is ideal for owners who want to maintain dependable operation for range use, training, or hunting with their Mossberg pump shotgun. Installing a fresh, correctly fitted cartridge stop supports proper shell control in the magazine tube and contributes to long-term reliability. It is a straightforward upgrade for shooters who prefer to keep their shotgun running to the manufacturer’s original standard of performance.

• Manufacturer: Mossberg
• Model: 500, 590, 590A1
• Gauge: 12 Gauge, 20 Gauge, .410 Bore
• Type: Factory replacement cartridge stop
• Product Number: 631000119
• Delivery Weight: 0.018 kg