Mossberg 590 Shockwave 12 Gauge Pump-Action Shotgun, 14.375-Inch Barrel, Cerakote Stainless (50644)
This Mossberg 590 Shockwave is a compact 12 gauge pump-action built on the 590 platform with a bird’s-head ("Raptor"-style) black synthetic grip and a ribbed synthetic "corn-cob" forend with a hand strap. It is marked "MOSSBERG / NORTH HAVEN, CT / U.S.A. / 590 / 12 GA" and features a Cerakote stainless-colored finish, a front bead sight, and a slotted, screw-attached top rail/base on the receiver. The barrel is marked CYLINDER BORE and is chambered for 2 3/4" and 3" shells.
CONDITION
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Metal Condition: Excellent condition, showing only faint signs of any prior use or handling.
Wood Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Mechanics: Excellent condition, showing only faint signs of any prior use or handling.
Overall Finish: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Notes: There is little sign of prior use. The firearm is in excellent condition and functions properly.
WHAT’S INCLUDED
- Original factory box (Mossberg 50644 labeled)
- Original manual
- Cable lock
Chambered for 2 3/4" and 3" shells, this Shockwave combines a 14.375" barrel with a 4+1 capacity in a compact package. The barrel is marked CYLINDER BORE, and the shotgun uses a pump-action operating system.
This example features a tang-mounted safety and a right-side ejection port. The receiver is aluminum, and the finish is listed as Cerakote stainless for a clean, stainless-colored appearance.
The grip and forend are synthetic/polymer, with the bird’s-head grip and ribbed "corn-cob" style forend providing a distinct Shockwave configuration. The forend includes a hand strap embroidered "Mossberg" for added control.
A slotted, screw-attached top rail/base is present on the receiver, and the shotgun is equipped with a front gold/brass-colored bead sight. Up front, it has a knurled front magazine-tube cap in a "clean-out" style.



