Mossberg 590 Shockwave 12 Gauge, 14.375 in Heavy-Walled Barrel, Custom M-LOK Forend, Railed Heat-Shield, 5+1, Matte Black
This Mossberg 590 Shockwave stands out with a compact 14.375-inch heavy-walled, cylinder-bore barrel and a purpose-built custom setup. It features a Magpul M-LOK forend with an angled foregrip, a ventilated aluminum heat-shield/handguard with a full-length top Picatinny rail and short rail sections up front, plus a receiver-mounted shell card. It is in very good overall condition with an excellent bore, and it comes with a nylon shotgun scabbard. Note: The shotgun cannot be stored in the scabbard with a vertical grip installed.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Minor surface scratches and small blemishes are present.
What’s Included
- Nylon shotgun scabbard
- Magpul MOE M-LOK forend for Mossberg 590/590A1 (installed)
- Angled foregrip mounted to forend (installed)
- Ventilated aluminum heat-shield/handguard with full-length top Picatinny rail, short side/bottom rail sections, and a front standoff/spike (installed)
- Hook-and-loop receiver-mounted elastic shell card (installed)
The 590 Shockwave platform brings Mossberg’s proven pump-action design into a compact package. It uses the 590-pattern action with twin action bars and dual extractors, a tang-mounted safety, and a bird’s-head (Raptor-style) textured polymer grip. The 12-gauge chamber accepts 2 3/4 and 3-inch shells, feeding from a 5+1 capacity tube.
Its 14.375-inch heavy-walled, cylinder-bore steel barrel is paired with a brass bead front sight for straightforward target indexing. The receiver is anodized aluminum and the barrel/magazine tube are matte blued, yielding a matte black overall appearance. Factory reference dimensions list an approximate overall length of 26.37 inches and weight around 5.75 lb.
This example is equipped with a Magpul MOE M-LOK forend and an angled foregrip for secure, repeatable hand placement. A ventilated aluminum heat-shield/handguard adds a full-length top Picatinny rail and short rail sections at 3, 6, and 9 o’clock near the muzzle, with an integrated front standoff/spike. A receiver-mounted hook-and-loop panel holds an elastic shell card for on-board ammunition management.
Rails are in place for mounting compatible accessories as desired, and the receiver’s tang safety remains easy to access from either hand. A nylon shotgun scabbard is provided for transport; please note the shotgun cannot be stored in the scabbard with a vertical grip installed.