Description

The Mossberg 590 Shockwave is a compact 12 ga pump‑action firearm built on the proven Mossberg 590 platform with a bird’s‑head style pistol grip and short barrel configuration. It’s classified as a firearm (not a shotgun) under the U.S. Gun Control Act because it lacks a shoulder stock. The Flat Dark Earth (FDE) Cerakote finish on the barrel, receiver, and magazine tube gives it a rugged look and improved corrosion resistance compared with standard matte blued versions.

Although often described similarly to short‑barreled shotguns, Shockwave models are designed without a stock so they remain compliant.

Specifications

• Model: Mossberg 590 Shockwave — Flat Dark Earth Cerakote option
• Type: Pump‑action firearm (12 ga)
• Gauge / Chamber: 12 Gauge, 3″ chamber (accepts 2¾″ and 3″ shells)
• Barrel Length: ~14 inches (heavy‑walled, cylinder bore)
• Capacity: ~5 + 1 
• Finish: FDE Cerakote on barrel, magazine tube, and receiver
• Grip: Raptor bird’s‑head pistol grip (no shoulder stock)
• Forend: Strapped corn‑cob‑style forend
• Sights: Front bead sight (receiver typically drilled/tapped for optics)
• Safety: Ambidextrous top‑mounted tang safety 
• Action Features:
  • Dual extractors
  • Positive steel‑to‑steel lockup
  • Twin action bars
  • Anti‑jam elevator
• Overall Length: ~26.3 ”
• Weight: ~5.25 lbs
• Choke Type: Cylinder bore (no constriction)
• Typical Use: Compact defensive / close‑quarters or range firearm.

Design

Compact Layout

• The Shockwave’s short barrel (~14″) and pistol grip provide a very compact overall length, making the firearm easier to maneuver in tight spaces.

Unique Grip

• The Raptor “bird’s head” pistol grip is designed to help control recoil with close‑quarters use.

Proven Pump Action

• Shares Mossberg’s classic pump‑action reliability with twin action bars, dual extractors, and positive lock‑up.

Accessory‑Ready Receiver

• Many Shockwave models feature a drilled and tapped receiver allowing the addition of optics or accessories if desired (with appropriate hardware).