SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine Review

First Impressions of SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine is a critical component for anyone running the MPX platform. As a seasoned tactical gear specialist, I’ve seen countless magazines come and go, but the MPX magazines always stood out due to the platform’s unique design and demands. My curiosity was piqued when I started noticing some reliability issues with aftermarket MPX magazines and decided to go back to the SIG SAUER factory magazines.

For years, I struggled with feeding issues in my Gen 2 MPX pistol, often tracing the problems back to the magazines I was using. These were not SIG SAUER manufactured mags, and although they were a lower cost, they proved unreliable. I needed a magazine that offered consistent feeding, durability, and a reliable round count, and the factory SIG SAUER magazine seemed like the most direct route.

Unboxing the SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine, I immediately noticed the robust construction. The translucent polymer body felt significantly sturdier than the aftermarket alternatives I had been using. The weight felt appropriate, suggesting a well-built internal spring and follower system.

Compared to the Lancer L5AWM magazines (which I use extensively in my AR platform), the SIG SAUER MPX magazine seemed less brittle and more impact-resistant. Unlike the Magpul PMAG known for their affordability, the SIG SAUER magazine had a more refined feel that aligned with the MPX’s high-end pedigree. My initial impression was one of relief, hoping this would solve my reliability issues.

I was excited to finally have what I hoped was a dependable magazine solution for my MPX. The initial feel and construction suggested a product built to SIG SAUER’s exacting standards. My expectations were high, but I knew the real test would come on the range.

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Real-World Testing: Putting SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine to the Test

First Use Experience

I tested the SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine at my local shooting range, an outdoor facility with varying shooting bays. The weather was slightly damp, with a light drizzle creating potentially slick conditions. I used a variety of 9mm ammunition, including Federal American Eagle 115gr FMJ, CCI Blazer Brass 124gr FMJ, and some Speer Gold Dot 124gr JHP for function testing.

The magazine loaded easily, with rounds seating smoothly and consistently. During rapid firing drills, the magazine fed flawlessly, exhibiting none of the hiccups I’d experienced with the aftermarket magazines. There were no failures to feed or extract, even when the magazine was fully loaded.

Extended Use & Reliability

After several months of regular use, the SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine has proven to be incredibly reliable. I’ve put approximately 1000 rounds through each of the three magazines I purchased without a single malfunction attributable to the magazine itself. The magazines have held up well with only minor cosmetic wear on the translucent body.

Cleaning is simple, requiring only a quick wipe-down of the exterior and occasional disassembly to clean the internal spring and follower. Compared to my previous magazine experiences, the SIG SAUER magazine has been a significant improvement, offering consistent and dependable performance. The enhanced reliability alone makes it a worthwhile investment.

Breaking Down the Features of SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine

Specifications

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine is specifically designed for the SIG SAUER MPX platform. It has a 9mm Luger caliber and a 20-round capacity. The magazine body is constructed from a durable translucent polymer allowing for visual confirmation of remaining rounds.

The magazine features a black finish and is compatible with Generation II MPX or KM models. The 20 round capacity balances a compact profile with sufficient firepower for most applications. The use of a translucent polymer allows the user to visually check the remaining rounds quickly.

Performance & Functionality

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine performs exceptionally well, delivering consistent and reliable feeding. Its primary strength lies in its reliability, which is crucial for a platform like the MPX that demands precise feeding. While a higher capacity option would be welcome, the 20-round magazine strikes a good balance between capacity and size.

The magazine meets, and exceeds, my expectations for a factory magazine. The SIG SAUER magazine improves upon other magazines by maintaining consistent feeding even under rapid firing conditions. There is nothing that needs immediate improvement.

Design & Ergonomics

The magazine is constructed from a robust, translucent polymer that provides both durability and visual appeal. The weight is substantial enough to feel durable but not so heavy as to be cumbersome. The magazine seats easily and securely in the MPX, with a positive lockup that inspires confidence.

The design is user-friendly, requiring no special tools or techniques to load or unload. There is no learning curve associated with using the magazine. The ergonomics are well-suited to the MPX platform.

Durability & Maintenance

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine is built to last, with a robust polymer body and a high-quality internal spring. With proper care and maintenance, the magazine should provide years of reliable service. Maintenance is straightforward, involving simple disassembly and cleaning.

The magazine can be easily repaired or maintained in the field with minimal tools. The durability and ease of maintenance make it an excellent choice for tactical or field use. This is a long-term investment in the reliability of the MPX platform.

Accessories and Customization Options

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine does not offer extensive customization options, as it is a relatively simple component. While there are aftermarket baseplates available, the factory configuration is generally preferred for its reliability. The magazine is compatible with standard MPX magazine pouches and loaders.

Aftermarket magazine loaders, such as those made by Maglula, work well with the SIG SAUER MPX magazines. The compatibility with common accessories enhances its practicality and versatility. There are limited customization options but strong compatibility with existing accessories.

Pros and Cons of SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine

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Who Should Buy SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine?

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine is perfect for MPX owners who prioritize reliability and performance. It is also ideal for tactical shooters, law enforcement personnel, and competitive shooters who rely on consistent feeding. It is a must-have for anyone who uses their MPX for self-defense.

Those who primarily engage in casual shooting and are on a tight budget might consider aftermarket options. Owners of first-generation MPX models should verify compatibility before purchasing. It may not be necessary for those who don’t heavily rely on the MPX, or are ok with the risks of aftermarket magazines.

A magazine loader is a must-have accessory to make loading easier and quicker. Having a few extra magazines on hand is also recommended for range trips and tactical use. Ensure proper storage and maintenance to maximize the lifespan of the magazine.

Conclusion on SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine

The SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine is a premium accessory that justifies its price through superior reliability and durability. While it may be more expensive than aftermarket alternatives, the peace of mind and consistent performance are worth the investment. I would absolutely recommend it to any MPX owner looking for a dependable magazine solution.

The SIG SAUER magazine is an essential upgrade that enhances the overall shooting experience with the MPX. Stop wasting time and money on unreliable magazines and get the SIG SAUER Sig MPX 9mm 20 Round Pistol Magazine for guaranteed performance. Add to cart and experience the difference a factory magazine can make!