Make: Mossberg

Model: 500

Serial Number: U301584

Year of Manufacture: Modern

Gauge: 12 Gauge, 2 3/4" and 3” Shells

Action Type: Pump Action

Barrel Length: 20”

Choke: Fixed, CYL

Sights / Optics: Brass bead front sight fixed to the barrel. The top of the receiver is serrated for glare reduction. There are two pairs of drilled, tapped, and filled holes on top of the receiver.

Stock Configuration & Condition: The stocks are two piece synthetic with pistol grip, fluted straight comb, serrated rubber buttpad, sling stud in the belly of the buttstock, and FAB DEFENSE PR-MO Mossberg 500 Rail System pump grip with tri-picatinny rails. The LOP measures 14 3/8” from the front of the trigger to the back of the buttpad. There are no chips or cracks. There is little to no handling wear. The stock rates in about Excellent overall condition.

Type of Finish: Blue, Black

Finish Originality: Original

Bore Condition: The bore is bright. There is no erosion in the bore. In this writer’s opinion the bore rates 10/10.

Overall Condition: This shotgun retains about 99% of its metal finish. The balance of the finish is strong and complete throughout. There is little to no operational wear. The screw heads are sharp and pins are unmarred. The markings are clear. Overall, this shotgun rates in about Excellent condition.

Mechanics: The action functions correctly. We have not fired this shotgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance standards.

Box, Paperwork & Accessories: None.

Our Assessment: The Mossberg 500 is a trusted workhorse in the world of pump-action shotguns, known for its rugged reliability, versatility, and ease of use. This particular model is configured with a 20” barrel chambered for both 2 ¾” and 3” 12 gauge shells, making it an ideal choice for home defense, tactical use, or general-purpose shooting. Outfitted with the FAB Defense PR-MO rail system, this shotgun allows for full customization with tri-rail picatinny sections that support lights, lasers, vertical grips, or other accessories. Combined with the synthetic pistol grip stock and fluted straight comb, this configuration offers both durability and modularity in a defensive platform. The fixed cylinder bore is well-suited for buckshot or slug loads, and the bore itself is pristine—bright and erosion-free, rating a perfect 10/10.

Cosmetically and mechanically, this Mossberg 500 is in outstanding shape. With approximately 99% of its finish intact and minimal signs of use, it appears to have spent very little time in the field. The action cycles smoothly, the receiver top is serrated for glare reduction, and the drilled-and-tapped holes allow for further optic mounting if desired. This shotgun strikes a balance between tactical readiness and Mossberg’s hallmark simplicity, making it a solid choice for users who want reliability right out of the box with room to personalize. Whether you’re upgrading your home defense setup or adding a purpose-built pump gun to your kit, this Mossberg 500 is a turnkey performer.