Mossberg 590S 12 Gauge Pump-Action, 18.5 inch Cylinder Bore, 6+1, Streamlight TL-Racker Forend Light, Crimson Trace Red Dot, Side Saddle
This Mossberg 590S stands out as a purpose-built, upgraded shotgun that cycles 1.75, 2.75, and 3 inch 12-gauge shells interchangeably without an adapter. It is set up with a Streamlight TL-Racker integrated light forend, a Crimson Trace micro red dot mounted on the receiver, and a receiver-mounted 6-round side saddle, with quick-detach sling swivels installed front and rear. It retains the 590S series features including an 18.5 inch cylinder-bore barrel, matte blued finish, and Mossberg's ambidextrous top-tang safety.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Not applicable - smoothbore (cylinder bore).
Specific Condition Notes: There are significant markings from prior handling and use. One side-saddle screw does not sit flush with the opposite side. Refer to pictures.
What’s Included
- Optic: Crimson Trace micro red dot (5 MOA)
- Forend Light: Streamlight TL-Racker integrated forend light (installed)
- Shell Carrier: Receiver-mounted side-saddle, 6-round (installed)
- Sling Hardware: Quick-detach sling swivels installed, front and rear
The 590S action is designed to run 1.75, 2.75, and 3 inch shells interchangeably, offering flexibility in capacity and recoil management without any adapter. This example has a 6+1 capacity, twin action bars, dual extractors, and a clean-out magazine tube, aligning with the proven 590 pattern.
The barrel is 18.5 inches with a cylinder bore and a brass bead front sight. Factory markings include the receiver stamped "MOSSBERG 590S" and the barrel marked "12 GA" and "CYLINDER BORE" for clear identification.
Upgrades include a Streamlight TL-Racker integrated light forend for illumination and a Crimson Trace micro red dot mounted on the receiver for a clear red aiming point. A 6-round side saddle keeps extra shells on the gun, and quick-detach sling swivels are installed front and rear.
The shotgun features a matte blued finish and a black synthetic fixed stock with a recoil pad. The length of pull measures approximately 14.25 inches, with an overall length of about 39.5 inches and weight around 6.75 pounds per factory reference.