Choate Tool Mossberg Sa-20 Shot Magazine Extension Review

The Choate Tool Mossberg Sa-20 Shot Magazine Extension: Not Just Another Review

For those who own a Mossberg SA-20 shotgun and find themselves wishing for a bit more firepower before needing to reload, the Choate Tool Mossberg Sa-20 Shot Magazine Extension presents a compelling solution. As a gear and equipment specialist with over a decade of hands-on experience across diverse environments, I’m always on the lookout for accessories that enhance functionality without compromising reliability. My SA-20, primarily used for sport shooting and occasionally for home defense scenarios, occasionally left me wanting just a couple more rounds in critical situations. This led me to seek out an extension that promised simplicity and effectiveness. The initial impression of this unit from Choate Tool was one of solid, no-nonsense construction. While I considered generic alternatives, the specific fitment and reputation of Choate for firearm accessories ultimately steered my decision. It arrived with a sense of quiet potential, a promise of increased operational capacity.


Real-World Testing: Putting Choate Tool Mossberg Sa-20 Shot Magazine Extension to the Test

First Use Experience

My testing began on a crisp autumn afternoon at my local, well-maintained shooting range, a controlled environment where I could focus on the mechanics and performance of the extension. The primary scenario involved engaging multiple targets at various distances, simulating a scenario where sustained fire might be beneficial. I also included a few rounds of rapid fire to gauge how the added weight and extended feeding mechanism performed under stress. The weather was clear and mild, so I didn’t specifically test for extreme temperature or moisture resistance during this initial outing.

Installation required a bit more attention than I initially anticipated. While the product description mentions filing down a crimp on some SA-20 models, my specific shotgun definitely required this step before the old spring could be removed and the new magazine tube seated properly. It wasn’t a difficult process, but it did add an extra layer of complexity and required basic tools like a file, which aren’t typically included. This initial hurdle meant the unit wasn’t entirely intuitive right out of the box for my particular firearm.

Extended Use & Reliability

After several months and countless rounds through the SA-20 with the Choate extension installed, its performance has become a predictable and welcome asset. It has held up admirably during frequent trips to the range, handling everything from light target loads to heavier buckshot without a hitch. The steel construction shows minimal signs of wear, just a few faint scuffs on the exterior from routine handling and storage.

Cleaning and maintenance are straightforward, essentially mirroring the standard cleaning procedure for the shotgun itself, with the added step of ensuring the follower and spring within the extension are free of debris. Compared to older, less robust extensions I’ve used on other firearms, this Choate Tool unit has demonstrated superior durability and a consistent feeding performance that instills confidence. It hasn’t degraded in its ability to reliably feed the extra two rounds, which is crucial for any firearm modification intended for serious use.

Breaking Down the Features of Choate Tool Mossberg Sa-20 Shot Magazine Extension

Specifications

This magazine extension from Choate Tool is designed specifically for the Mossberg SA-20 shotgun. It is a steel construction unit, offering a robust and durable build. The extension is 6 inches long, which is a practical length that doesn’t overly unbalance the shotgun.

Crucially, it adds two additional rounds of 2 3/4 inch shells to the shotgun’s capacity. The package includes the magazine tube itself, a new magazine tube spring, and a barrel clamp. It’s important to note that this product does not come with a shell follower; one must be sourced separately if not already possessed. The manufacturer, Choate Tool, proudly states this product is made in the USA.

Performance & Functionality

The primary function of this magazine extension is to increase the ammunition capacity of the Mossberg SA-20. In this regard, it performs exceptionally well. It reliably adds two extra shots, bringing my SA-20 from its standard capacity to a 7-shot configuration (assuming a standard 5-round internal capacity plus the extension). This translates to a more enjoyable and less interrupted shooting session, whether at the range or in a defensive context.

The strengths of this unit lie in its robust build and consistent feeding. I experienced no instances of jams or malfunctions directly attributable to the extension during my testing. Its main weakness, as noted in user feedback, is the potential need for modification (filing the crimp) on certain SA-20 models, which isn’t explicitly detailed beyond a general warning. Considering its price point, its functionality is excellent and meets expectations for reliable capacity enhancement.

Design & Ergonomics

The design of the Choate Tool Mossberg Sa-20 Shot Magazine Extension is purely functional, eschewing any unnecessary aesthetic embellishments. The steel construction gives it a substantial feel, and the matte finish is understated and practical. It integrates seamlessly with the shotgun’s existing magazine tube housing once properly installed.

Ergonomically, the extension adds length and a slight bit of weight forward of the action. While this is expected with any magazine extension, it’s not so pronounced as to make the shotgun unwieldy. The barrel clamp, a necessary component for stability, is well-made and secures firmly without marring the shotgun’s finish if installed correctly. The overall design prioritizes durability and reliable function above all else, which is a sensible approach for this type of accessory.

Durability & Maintenance

The steel construction of this magazine extension suggests a high degree of durability, and my testing has borne this out. After significant use, there are no signs of structural compromise, no rust, and the threading for attachment remains smooth and functional. This is crucial for a component that extends the firearm’s magazine system.

Maintenance is straightforward, involving occasional cleaning of the spring and follower to ensure smooth operation. The Choate Tool company is known for producing durable firearm accessories, and this unit appears to be no exception. Potential failure points would likely stem from extremely harsh impacts or improper installation, but under normal operational stresses, it should last the lifetime of the shotgun.

Accessories and Customization Options

The Choate Tool Mossberg Sa-20 Shot Magazine Extension comes as a kit, including the crucial magazine tube, a replacement spring, and a barrel clamp. These are the essential components needed for a functional installation.

As previously mentioned, a significant point is that this kit does not include a shell follower. This is a critical component, and users must either use their existing one (if compatible and in good condition) or purchase a new one separately. While some users reported that aftermarket followers are available, it would have been beneficial to see a Choate follower included or offered as an optional add-on for guaranteed compatibility.

Pros and Cons of Choate Tool Mossberg Sa-20 Shot Magazine Extension

Pros

  • Reliably increases capacity by 2 rounds, bringing the SA-20 to a 7-shot configuration.
  • Durable steel construction built to withstand rigorous use.
  • Includes essential components: magazine tube, spring, and barrel clamp.
  • Made in the USA, supporting domestic manufacturing.
  • Simple, functional design that prioritizes performance.

Cons

  • Requires modification (filing crimp) on some SA-20 models for installation.
  • Does NOT include a shell follower, which must be purchased separately.
  • Installation instructions are generic and may not fully detail specific firearm needs.


Who Should Buy Choate Tool Mossberg Sa-20 Shot Magazine Extension?

This magazine extension is an excellent choice for owners of the Mossberg SA-20 shotgun who are looking to increase their firearm’s ammunition capacity without compromising reliability. It’s ideal for sport shooters who want more rounds between reloads during practice sessions or competitions. It also appeals to those who consider the SA-20 for home defense and desire the added advantage of a higher round count.

However, individuals who are not comfortable with minor firearm modification, such as filing a magazine tube crimp, might want to seek professional gunsmith assistance. Those who require a fully inclusive kit with all parts, including a follower, might need to look for alternative packages or be prepared to source the follower separately. For those willing to undertake a small modification for a significant capacity upgrade, this extension is a solid investment.

Conclusion on Choate Tool Mossberg Sa-20 Shot Magazine Extension

The Choate Tool Mossberg Sa-20 Shot Magazine Extension effectively delivers on its promise of increasing the firepower of the Mossberg SA-20 shotgun. Its robust steel construction and the inclusion of a new spring and barrel clamp provide a solid foundation for enhanced capacity. While the necessity of filing the magazine tube’s crimp on certain SA-20 models is a slight drawback, it’s a common requirement for many such extensions and is a manageable step for many firearm enthusiasts.

The absence of a shell follower in the kit is the most significant point of contention, requiring an additional purchase or careful use of an existing one. Nevertheless, considering its performance, durability, and the tangible benefit of two extra rounds, the $48.01 price point represents good value for money. I would recommend this extension to SA-20 owners who understand the potential installation requirement and are willing to source a compatible follower. It’s a practical, well-made upgrade that enhances the operational capability of an already versatile shotgun.

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