Mossberg 590S 12 Gauge Pump-Action, 18.5 Inch Barrel, 3 Inch Chamber, Cylinder Bore, Magpul SGA Stock & M-LOK Forend, Matte Black, 5+1
This Mossberg 590S stands out for its minishell-compatible action that cycles 1.75, 2.75, and 3 inch 12-gauge shells without an adapter, paired with a purposeful 18.5 inch plain barrel and fixed cylinder bore. It is custom-configured with a Magpul SGA fixed stock and Magpul M-LOK forend, and features a 3 inch chamber, brass-bead front sight, and matte black finish.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Light handling marks are present from previous use. The bore is bright and clean. Please refer to the photos for close-up views of the surfaces and finish.
What’s Included
- Mossberg 590S 12 Gauge pump-action shotgun
- Magpul SGA fixed stock (installed)
- Magpul M-LOK forend (installed)
The 590S action is engineered to run 1.75, 2.75, and 3 inch shells with no adapter. The elevator is stamped "1-3/4 - 3," and the barrel is rollmarked to confirm shell-length compatibility. Capacity is 5+1, and a knurled magazine cap is fitted.
The 18.5 inch carbon-steel barrel is plain with a fixed cylinder bore, and it wears a brass-bead front sight for a clean, durable sighting setup. The chamber is 3 inch, accommodating 2-3/4 and 3 inch loads as marked.
The aluminum receiver and barrel carry a matte black finish. Controls include the Mossberg tang safety. Markings include "MOSSBERG NORTH HAVEN, CT U.S.A."
Furniture consists of a Magpul SGA fixed polymer stock with a rubber buttpad and a 13.0 inch length of pull, matched to a Magpul M-LOK polymer forend for secure handling.