Remington Model 870 Marine Magnum 12 Gauge Pump-Action, 18.5 in Barrel, Matte Nickel, Fixed Cylinder (C) Choke, 6-Round
The Remington 870 Marine Magnum from the Special Purpose series stands out with factory electroless-nickel plating on all metal surfaces, inside and out, and a matte nickel finish on the receiver and barrel. It features an 18.5 in plain cylinder-bore barrel with a single front bead, an extended magazine tube that runs nearly flush to the muzzle with a matching nickel clamp and integral front sling swivel, and durable black synthetic furniture. This example carries clear factory markings and was produced in Ilion, New York.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: There are a few scuffs on the stock, and the firearm remains in great overall shape.
What’s Included
- Allen soft shotgun case
This Marine Magnum is finished in matte nickel over electroless-nickel plating that covers all external and internal metal components per factory literature. The receiver is marked "Remington 870 MARINE MAGNUM," and the barrel is marked "REMINGTON ARMS COMPANY ILION, NY" along with "12 GA 2 3/4 or 3" and "CYL."
The 18.5 in plain, non-ribbed steel barrel uses a fixed cylinder choke, noted as a fixed C choke, and is paired with a single front bead and no rear sight. The chamber is cut for both 2 3/4 and 3 in shells, providing straightforward versatility within its intended use.
An extended magazine tube runs nearly flush to the muzzle and is secured by a matching nickel clamp with an integral front sling swivel. Capacity is 6 rounds. The black synthetic stock includes a recoil pad and a rear sling attachment point, and the ribbed synthetic fore-end provides a solid grasp. Length of pull is 13.5 in.
This pump-action 12 gauge uses a cross-bolt safety and a steel receiver in a matte nickel finish. It was produced at Remington’s Ilion, New York facility as part of the Special Purpose series.
Additional details include a serial number area with an adjacent 2D/QR-style code, consistent with later factory marking practices.

