Remington Model 870 Magnum 12 Gauge Pump-Action, 20" Smoothbore, 7+1 Capacity, Williams Rear Sight, 1986
This 1986 Remington Model 870 Magnum is set up as a compact, smoothbore 12 gauge with practical upgrades. It features a 20" barrel chambered for 2 3/4" and 3" shells, a Williams adjustable rear sight paired with a ramped front blade, and an extended magazine tube for 7+1 capacity. A Pachmayr synthetic checkered forend complements the walnut stock with a rubber recoil pad, while the blued steel receiver retains classic 870 durability.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Fouling: Mild Fouling - Light buildup of fouling or dirt.
Specific Condition Details: This firearm is in solid shape. There are many instances of scratches and blemishes present. Spots of rust and pitting are present on the finish. There is minor buildup in the bore from plastic wads.
What’s Included
- Sling: Brown leather shoulder sling with stitched wide pad (installed on swivels)
- Custom Part: Williams adjustable rear sight (installed)
- Custom Part: Magazine tube extension with barrel/magazine clamp and integrated front sling swivel (installed)
- Forend: Pachmayr synthetic checkered forend (installed)
The 20" smoothbore barrel keeps this Model 870 Magnum quick-handling while remaining versatile for a broad range of 12-gauge loads. The barrel legend specifies use of 2 3/4" or 3" shells in Magnum receivers, aligning with its chambering.
Upgraded rifle-style sights include a ramped front blade and a Williams adjustable rear mounted to the receiver, with the receiver drilled and tapped for sight installation. This setup provides a clear, usable sight picture on a smoothbore configuration.
The extended magazine tube increases capacity to 7+1 and is secured by a barrel/magazine clamp that integrates a front sling swivel. A rear swivel on the stock pairs with the included leather sling for carry.
The shotgun retains a blued steel receiver with right-side ejection and a cross-bolt safety. The furniture combines a walnut stock with a pistol-grip profile and rubber recoil pad (14.0" LOP) and a Pachmayr synthetic checkered forend for a secure, durable grasp.
Manufactured in the USA in 1986, this example bears the Remington REP proof, a BG barrel date code, and a K inspector mark. It presents as a solid, serviceable 870 Magnum with useful, receiver-mounted sighting and increased on-board capacity.