Mossberg 590 Shockwave 20 Gauge Shotgun: A Comprehensive Review

The Mossberg 590 Shockwave 20 gauge shotgun has carved a unique niche in the firearms market. Blending the compact size of a pistol-grip firearm with the reliability and power of a shotgun, the 590 Shockwave in 20 gauge offers a compelling option for home defense, recreational shooting, and even certain hunting applications. This review delves into the specifications, features, performance, and overall value of the Mossberg 590 Shockwave 20 gauge shotgun, providing a detailed overview for potential buyers.

Overview of the Mossberg 590 Shockwave

The Mossberg 590 Shockwave is a non-NFA firearm, meaning it avoids the stringent regulations applied to short-barreled shotguns under the National Firearms Act (NFA). This is achieved by utilizing a “birdshead” pistol grip instead of a traditional stock, maintaining an overall length that complies with federal regulations. The 20 gauge version offers a lighter recoil compared to the 12 gauge variant, making it more manageable for a wider range of shooters. The Mossberg 590 Shockwave 20 gauge is chambered for 20 gauge, 3-inch shells, providing versatility in ammunition selection.

Key Specifications

Gauge: 20 Gauge
Chamber: 3″
Capacity: 5+1 (2 3/4″ shells)
Barrel Length: 14.375″
Overall Length: 26.37″
Weight: Approximately 5.25 lbs
Choke: Cylinder Bore
Sights: Bead Sight
Finish: Matte Blue
Stock: Raptor Pistol Grip

Features and Design

Compact Design

The most striking feature of the Mossberg 590 Shockwave 20 gauge is its compact design. The 14.375-inch barrel and Raptor pistol grip contribute to an overall length of just over 26 inches. This makes it incredibly maneuverable in tight spaces, ideal for home defense scenarios or situations where storage space is limited.

Raptor Pistol Grip

The Raptor pistol grip, manufactured by Shockwave Technologies, is a key component in the Mossberg 590 Shockwave’s classification as a non-NFA firearm. Its unique shape allows for a secure grip while maintaining the overall length requirement. The grip is made of a durable polymer and provides a comfortable hold.

Reliable Action

The Mossberg 590 Shockwave utilizes the proven Mossberg 500/590 pump-action system, known for its reliability and durability. The action is smooth and consistent, ensuring reliable cycling of shells. The dual extractors and anti-jam elevator contribute to the firearm’s dependability.

Ambidextrous Safety

The top-mounted ambidextrous safety is a standard feature on Mossberg shotguns and is easily accessible for both right- and left-handed shooters. This adds to the firearm’s versatility and ease of use.

Bead Sight

The Mossberg 590 Shockwave 20 gauge comes standard with a simple bead sight at the end of the barrel. While basic, it is effective for quick target acquisition at close ranges. Aftermarket sight options are available for those who prefer a more precise aiming system.

Performance and Handling

The Mossberg 590 Shockwave 20 gauge shotgun offers a unique shooting experience. The lack of a traditional stock means that the shooter must rely on a proper grip and stance to control the firearm’s recoil. While the 20 gauge chambering reduces recoil compared to the 12 gauge version, it still requires practice and familiarity to master. The compact size makes it easy to maneuver, but it also requires a firm grip to maintain control during firing.

Recoil Management

Recoil management is crucial when shooting the Mossberg 590 Shockwave. Proper technique involves keeping the firearm close to the body and using a firm grip to absorb the recoil. The 20 gauge chambering makes recoil more manageable than the 12 gauge, but it is still a factor to consider, especially for smaller or less experienced shooters. Using reduced-recoil ammunition can further mitigate recoil.

Accuracy

Accuracy with the Mossberg 590 Shockwave 20 gauge is dependent on the shooter’s skill and the range to the target. The bead sight is adequate for close-range shooting, but more precise aiming may be required for longer distances. Practicing with different types of ammunition and distances will help the shooter determine the firearm’s effective range and accuracy.

Ammunition Selection

The Mossberg 590 Shockwave 20 gauge is compatible with a wide range of 20 gauge ammunition, including birdshot, buckshot, and slugs. The choice of ammunition will depend on the intended use of the firearm. Birdshot is suitable for target practice and small game hunting, while buckshot is a common choice for home defense. Slugs offer greater range and accuracy for larger targets.

Pros and Cons

Pros

Compact and Maneuverable
Reliable Pump-Action System
Manageable Recoil (Compared to 12 Gauge)
Ambidextrous Safety
Versatile Ammunition Selection
Non-NFA Firearm

Cons

Requires Practice to Master
Limited Range with Bead Sight
Recoil Can Still Be Significant
Not Ideal for Long-Range Shooting

Who is the Mossberg 590 Shockwave 20 Gauge For?

The Mossberg 590 Shockwave 20 gauge is a good option for individuals seeking a compact and reliable firearm for home defense or recreational shooting. Its manageable recoil makes it suitable for shooters who may find the 12 gauge version too challenging. It is also a good choice for those who need a firearm that is easy to store and transport. However, it is important to note that the Mossberg 590 Shockwave 20 gauge requires practice to master, and it is not ideal for long-range shooting.

Alternatives to the Mossberg 590 Shockwave

Several alternatives exist for those considering the Mossberg 590 Shockwave 20 gauge. These include:

Mossberg 590 Shockwave 12 Gauge: Offers greater power but with increased recoil.
Remington Tac-14: A similar firearm with a different design and grip.
Traditional Shotguns with Pistol Grips: These typically require NFA registration due to their shorter barrel lengths.

Conclusion

The Mossberg 590 Shockwave 20 gauge shotgun is a unique and versatile firearm that offers a compelling option for home defense, recreational shooting, and certain hunting applications. Its compact design, reliable action, and manageable recoil make it a good choice for a wide range of shooters. However, it is important to consider the firearm’s limitations and practice proper technique to ensure safe and effective use. The Mossberg 590 Shockwave is a specialized tool that, when used responsibly and with proper training, can be a valuable asset. Ultimately, the Mossberg 590 Shockwave 20 gauge provides a potent combination of firepower and maneuverability in a compact package. The Mossberg 590 Shockwave 20 gauge is worth considering if you’re in the market for a non-traditional shotgun.

[See also: Shotgun Home Defense Tactics]
[See also: Choosing the Right Shotgun Ammunition]