Mossberg 590 12 Gauge Pump-Action — 18.5 in Barrel, 6+1 Capacity, Cylinder Bore, Magpul SGA/MOE Upgrades, TacStar Sidesaddle
This Mossberg 590 is a customized, ready-to-use 12 gauge pump-action with practical upgrades and a clean, functional setup. It features an 18.5 inch cylinder bore barrel, 6+1 capacity, and a drilled-and-tapped receiver with filler screws installed. Magpul furniture and a TacStar six-round sidesaddle shellholder add capability without bulk, and the uniform matte black finish ties the package together.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The firearm presents in solid shape with scattered scratches and blemishes on the exterior from prior handling and use.
What's Included
- Cleaning kit
- Magpul SGA stock (installed)
- Magpul MOE forend with M-LOK slots (installed)
- Short Picatinny rail section on forend (installed)
- TacStar sidesaddle shell carrier, 6-shell (installed)
- Barrel/magazine clamp with sling loop (installed)
The upgrades on this 590 are focused and practical. A Magpul SGA stock provides an adjustable length of pull via spacers and is set to approximately 12.1 inches. The stock includes integral sling slots and a rubber buttpad for a stable shoulder interface.
Up front, the Magpul MOE forend adds M-LOK slots for accessory mounting. A short Picatinny rail section is installed on the forend for direct attachment of a light or other compatible accessory. A TacStar six-round sidesaddle shellholder is mounted to the receiver for organized on-gun shell carry.
The 18.5 inch steel barrel uses a cylinder bore for broad patterning, paired with a brass bead front sight and no rear sight. The receiver is aluminum and drilled and tapped for optics or bases, with filler screws currently installed. The magazine tube is open-ended with a removable cap at the muzzle.
Chambered for 2 3/4 in and 3 in shells, this pump-action has a 6+1 capacity. Controls include Mossberg's ambidextrous top-tang safety with a red indicator. The barrel, magazine tube, and receiver all wear a uniform matte black finish. Made in the USA.