Mossberg 590 Shockwave
O.F. Mossberg & Sons · Shotgun · In Production · 2017
Also known as: Shockwave, 590 Shockwave, Mossberg Shockwave
Overview
The Mossberg 590 Shockwave is a pump-action 12-gauge firearm featuring a 14.375-inch or 18.5-inch barrel and a bird's-head Raptor pistol grip instead of a traditional shoulder stock. Classified as a "firearm" rather than a shotgun under federal law due to its overall length exceeding 26 inches and never having been equipped with a shoulder stock, the Shockwave occupies a unique legal niche that requires no NFA tax stamp. Built on the proven 590 platform, it retains dual extractors, twin action bars, steel-to-steel lockup, anti-jam elevator, and Mossberg's ambidextrous tang safety. The corn cob forend with integrated strap aids in controlling recoil during rapid fire. Available in 12-gauge, 20-gauge, and .410 bore configurations.
Specifications
| Weight (empty) | 2495 g (88.0 oz) |
| Overall Length | 781 mm (30.75") |
| Barrel Length | 470 mm (18.50") |
| Action Type | Pump Action |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 6 rounds |
| Magazine Type | Tubular |
| Effective Range | 40 m (44 yd) |
| Barrel Rifling | Smoothbore |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Matte Blue |
Calibers
- 12 Gauge · primary — also known as 12 ga, 12 bore
- 20 Gauge — also known as 20 ga, 20 bore
- .410 Bore — also known as .410 ga, .410
Features
- Firing modes: Manual
- Feed systems: Tubular Magazine
- Safety mechanisms: Tang Safety
- Features: Raptor Birds Head Grip, Corn Cob Forend With Strap, Dual Extractors, Twin Action Bars, Steel To Steel Lockup, Anti Jam Elevator, Cylinder Bore, 3 Inch Chamber, Non Nfa Firearm
Variants
- Mossberg 590 Shockwave SPX — Tactical
- Mossberg 590 Shockwave Laser Saddle — Laser Equipped
- Mossberg 590 Shockwave Cerakote — Finish
- Mossberg 590 Shockwave 20 Gauge — 20 Gauge
- Mossberg 590 Shockwave .410 — 410 Bore
- Mossberg 590 Nightstick — Nightstick
- Mossberg 590S Shockwave — Short Shell
Service history
Operators
- United States Civilian Market · adopted 2017
Production
Production years: 2017-present
One of the best-selling non-NFA firearms; spawned an entire product category
Origin
Country of origin: United States
Notes
The Shockwave's non-NFA status derives from the ATF's determination that it is a "firearm" rather than a shotgun, since it was manufactured with a bird's-head grip and never fitted with a shoulder stock, and its overall length exceeds 26 inches. The 7-shot model (18.5-inch barrel, 6+1 capacity) has an overall length of 30.75 inches. The 14.375-inch barrel models have 4+1 (12ga) or 3+1 (.410) capacity. The Nightstick variant replaces the Raptor grip with a more traditional pistol grip. The SPX variant adds Magpul furniture. Weights range from 5 lbs (14" barrel) to 5.5 lbs (18.5" barrel). MSRP: $592-$750.
Background
The Mossberg Shockwave created a new firearms category when it debuted in 2017, exploiting a legal gray area in federal firearms law. By pairing a 14.375-inch barrel with a bird's-head grip on a receiver that never had a stock attached, Mossberg created a compact pump-action firearm that requires no NFA tax stamp, no short-barreled shotgun registration, and is legal in most states. The Shockwave became one of the most talked-about firearms of the decade and spawned imitators from virtually every major shotgun manufacturer.