Introduction
The Mossberg 590 Shockwave, recognizable for its distinct, bird’s head pistol grip, is a popular firearm due to its maneuverability and ease of use. But the desire to tailor a firearm to personal preferences often leads owners to contemplate modifications. One of the most common questions that arises when discussing the Shockwave is whether it’s possible, and more importantly, legal and practical, to add a stock. This guide answers that question by providing comprehensive information on stock options, compatibility, installation, and the crucial legal ramifications. We aim to equip you with the necessary knowledge to make informed decisions.
The Shockwave and Legal Boundaries
Before considering any modification to a firearm, especially one like the Mossberg 590 Shockwave, a thorough understanding of the laws surrounding firearms is essential. The Shockwave’s design places it in a specific legal category, and adding a stock can alter its classification. The intent is to make sure every reader is aware of these regulations before proceeding with any modifications.
A firearm is defined by the law, and this definition dictates how it can be owned, transported, and modified. The National Firearms Act (NFA) is a federal law that governs certain types of firearms, including short-barreled shotguns. The Shockwave, as originally manufactured, falls outside of this category because it is designed without a stock.
However, adding a stock to the Shockwave could potentially transform it into an NFA-regulated firearm, specifically a short-barreled shotgun (SBS). This is because the addition of a stock usually implies it can be fired from the shoulder and the Shockwave itself has a short barrel. This transformation triggers a series of requirements and restrictions, including registration with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), payment of a tax, and strict compliance with other federal regulations.
Furthermore, state and local laws can vary widely. Some states may have more restrictive laws regarding short-barreled shotguns or other firearm modifications. Before making any changes, researching your local and state statutes is indispensable. Gun owners bear the ultimate responsibility for knowing and complying with the laws of their jurisdiction. Ignoring these legal intricacies can lead to serious consequences, including fines, legal action, and the loss of your right to own firearms. Always remember to consult with a legal professional or an attorney specializing in firearms law to ensure you remain on the right side of the law.
Why Consider a Stock for Your Shockwave?
Why would an owner want to add a stock to their Mossberg 590 Shockwave? There are several potential benefits. The pistol grip of the Shockwave, while providing a compact platform, can sometimes be difficult to control, especially during rapid firing or when handling powerful ammunition. Adding a stock can significantly enhance control and stability, leading to improved accuracy, particularly at longer distances. This improved control can translate into a more comfortable shooting experience as well.
A stock can also reduce felt recoil. Recoil, the rearward force produced by firing a gun, can be significant in shotguns. A properly designed stock, coupled with the shooter’s shoulder, helps distribute the recoil force, making the shot feel more manageable. This is especially important for extended shooting sessions.
Ergonomics are another consideration. A stock allows for a more natural shooting posture, aligning the shooter’s eye with the sights for quicker target acquisition and more precise shot placement. The bird’s head grip necessitates a different shooting stance, and a stock lets the shooter get into a position that is more comfortable and natural.
However, it is important to consider the drawbacks. The legal ramifications are at the forefront. As previously discussed, adding a stock can lead to the legal complexities associated with NFA-regulated firearms. This involves rigorous requirements for registration and compliance with federal and local laws.
Adding a stock also changes the original compact design of the Shockwave. The Shockwave’s maneuverability is one of its key selling points. Adding a stock extends the overall length of the firearm, making it less ideal for close-quarters situations or easy concealment, if that’s what you’re looking for.
Finding Stock Options and Understanding Compatibility
The Mossberg 590 Shockwave differs from standard Mossberg 500/590 shotguns in a fundamental way—its lack of a traditional stock attachment point. Because of this, directly swapping the bird’s head grip for a standard stock is generally not possible. This design difference is crucial when you think about modifying your shotgun.
You can adapt your Shockwave to accept a stock in a few different ways. We’ll look at the options available and how they will affect your firearm.
Conversion kits and adapters are common solutions for transforming the Shockwave. These kits typically involve replacing the rear of the receiver with a system that allows for the attachment of a standard stock. These conversion kits may be the most popular option for those wanting to mount a stock.
Conversion kits are made up of various components that may differ among the different brands. This might include a new receiver adapter, often with the ability to attach a buffer tube, a pistol grip, and potentially some additional hardware. Some kits are designed to be easier to install, whereas others may require more specialized tools. The materials used in these kits will vary, ranging from high-strength polymers to machined aluminum.
The adaptability of a conversion kit is a key consideration. Some adapters provide a range of adjustments for the stock. This may include the length of pull, the distance from the trigger to the stock. This customization can accommodate different body types and shooting styles.
Popular brands that offer conversion kits include Adaptive Tactical and Black Aces Tactical. These brands offer several kits in different price ranges and with different levels of included parts. Before purchasing, consider the materials, ease of installation, and compatibility with the stock that you intend to use.
Complete receiver replacements offer another approach. These are kits that contain an entire new receiver that is compatible with standard stocks. This is often the most involved method of modifying the Shockwave. These replacements may include new mounting points for the forend, the stock and potentially a new bolt assembly. This is the best choice if you are rebuilding your firearm for any reason.
Using a replacement receiver is a more significant alteration, and the legality of this action will depend on the local and federal guidelines. These kinds of modifications may require serial number transfer or new registration. Always consult with an attorney before making any modifications.
Other, more specialized options might exist, such as certain folding stocks or those with adjustable lengths. However, these options are often limited in availability or may pose legal concerns in many jurisdictions. It is important to understand these options before investing in modifications.
Important Considerations for Compatibility
Regardless of the stock option you choose, carefully verify compatibility before purchase. Ensure that the specific stock and any adapter kit or receiver replacement are designed to fit the Mossberg 590 *specifically.* Do not rely on general compatibility claims or assumptions.
Thoroughly examine the manufacturer’s recommendations and instructions. Manufacturers often provide detailed specifications and guidance regarding their products.
Before you start an installation, consider that the stock and its attachment system need to perform correctly. This means having solid contact and a smooth movement of the firearm.
Installation and Practical Aspects
Installing a stock on a Mossberg 590 Shockwave generally involves the following steps. You’ll want to lay out your tools and parts, read the instructions, and take your time. The following are some common procedures that may be involved in modifying your firearm.
Prioritize safety. Before starting any work on your firearm, always ensure that it is unloaded. Verify that there are no rounds in the chamber or magazine. Remove all ammunition from the work area to eliminate any potential accidents.
Carefully follow the manufacturer’s instructions. Each conversion kit, adapter, or receiver replacement will come with its specific installation instructions. Adhere to these instructions meticulously.
Properly tighten bolts and screws, and use thread-locking compounds as recommended. Pay close attention to the torque specifications if provided by the manufacturer to ensure secure and long-lasting attachments.
Test the shotgun’s action after installation. Cycle the action to verify that the bolt functions smoothly, and the trigger operates correctly. Make sure that the modified firearm is functioning correctly and does not have any problems.
Potential challenges during installation might include the need for specialized tools such as a vice, specific wrenches, or specialized tools to remove or install components. If you are not comfortable with the process, seek assistance from a qualified gunsmith.
Maintaining Your Modified Shockwave
After installing a stock, maintaining your modified Mossberg 590 Shockwave is essential for longevity and safe operation.
Regular cleaning and lubrication are critical. Disassemble the shotgun and clean it thoroughly after each use. Lubricate the moving parts with a quality gun oil or lubricant.
Inspect the firearm regularly for any signs of wear and tear. Check for loose screws, cracks, or any damage to the stock, receiver, or other components. Address any issues promptly.
Conclusion
Adding a stock to your Mossberg 590 Shockwave can enhance control, accuracy, and comfort. However, the decision should be approached with due consideration for legal implications and practical realities.
Remember to fully understand the legal framework surrounding firearm modifications in your area. Thorough research and legal consultation are critical before any modification.
Choose stock options carefully, considering compatibility, installation complexity, and the intended use of your firearm. Make sure that you fully understand the changes you are making and the impact those changes have.
Enjoy your modified Mossberg 590 Shockwave responsibly and safely, adhering to all applicable laws and regulations.
