KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit Review

First Impressions of KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit

The KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit promises to drastically increase the capacity of your Glock 21 magazines, transforming them into high-capacity powerhouses. This kit, manufactured by KRISS USA, aims to provide Glock 21 owners with a significant advantage in situations where increased firepower is paramount, whether it’s for competition, tactical applications, or simply more range time between reloads. It’s a compelling offering, especially for those already invested in the Glock 21 platform.

As someone who has spent years in the tactical and outdoor gear world, I’m always looking for ways to enhance the functionality of my firearms. My Glock 21, while reliable and powerful, always felt limited by its standard magazine capacity. I was seeking a solution that offered a substantial increase in rounds without sacrificing reliability or adding excessive bulk.

Upon receiving the KRISS USA Mag-Ex2, my first impression was of its robust construction. The reinforced composite material felt durable and well-made. It seemed like a significant upgrade from some of the cheaper, less reliable magazine extensions I’ve encountered.

I considered several alternatives, including magazine extensions from other manufacturers like Strike Industries and Taran Tactical Innovations. Ultimately, I chose the KRISS USA Mag-Ex2 because of KRISS USA’s reputation for quality and innovation, especially within the Glock ecosystem. The promise of a 30-round capacity in a .45 ACP magazine was also a major selling point.

Initially, I was cautiously optimistic. High-capacity magazine extensions can sometimes be finicky, so I was eager to see if the KRISS USA Mag-Ex2 could live up to its claims of reliable performance. I was eager to test the claim of reliable feeding with such a large capacity.

Real-World Testing: Putting KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit to the Test

First Use Experience

I put the KRISS USA Mag-Ex2 through its paces at my local shooting range. I primarily tested it with a Gen 4 Glock 21, but also confirmed compatibility with a Gen 3. The range offered a controlled environment to assess feeding, reliability, and overall handling.

I experienced mixed results regarding performance on that initial range visit. The first few magazines fed reliably, but as the magazines were used, feeding issues increased, specifically with the last 5-7 rounds. This occurred with multiple magazines assembled with the KRISS USA Mag-Ex2.

I did not experience any issues with the extension kit itself during the initial range visit. The construction felt solid. There was no cracking or breaking of the components during magazine loading, unloading, or firing.

Extended Use & Reliability

After several range sessions, I have a clearer picture of the KRISS USA Mag-Ex2’s performance. While the extension kit itself is durable, consistent and reliable feeding proved problematic.

Despite trying different ammunition types and carefully cleaning the magazines, the feeding issues persisted. The last few rounds consistently failed to feed properly, leading to stoppages and requiring manual intervention. This seriously undermined my confidence in the magazine’s reliability.

Maintenance proved simple; disassembly for cleaning was straightforward. However, the persistent feeding issues overshadowed any positive aspects of ease of care. Unfortunately, it did not outperform expectations.

Breaking Down the Features of KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit

Specifications

The KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit is designed to increase the capacity of standard Glock 21 magazines. It is specifically made for Gen 3, 4, and 5 Glock 21 models chambered in .45 ACP.

• Manufacturer: KRISS USA. This is a reputable company known for its innovative firearms and accessories.
• Color: Black. It blends seamlessly with the standard Glock aesthetic.
• Fabric/Material: Polymer. The polymer construction offers a good balance of durability and weight.
• Magazine Capacity: 30 Round. This is a significant increase over the standard 13-round capacity of a Glock 21 magazine.
• Caliber: .45 ACP. It is specifically designed for the .45 ACP cartridge.
• Gun Make: Glock. It’s designed exclusively for Glock pistols.
• Gun Model: Glock 21. Ensures compatibility with this specific model.
• Model Generation: 5, 4, 3. Supports a wide range of Glock 21 generations.

The high capacity is undoubtedly the most significant specification. A 30-round magazine offers a distinct advantage in scenarios where increased firepower is needed. The compatibility across multiple generations of Glock 21 models ensures broad usability.

Performance & Functionality

In theory, the KRISS USA Mag-Ex2 aims to provide reliable feeding of 30 rounds of .45 ACP ammunition. However, in practice, the performance fell short of expectations due to the previously noted feeding issues with the last few rounds in the magazine.

The primary weakness is the feeding reliability. The initial rounds performed well, but the consistent failure of the last rounds to feed correctly negates the benefits of increased capacity. Despite the rugged construction of the magazine extension, the feeding problems were ultimately a dealbreaker.

While the kit aims to exceed expectations, the feeding issues indicate otherwise. The core function of reliable feeding is compromised, diminishing the overall value of the product.

Design & Ergonomics

The KRISS USA Mag-Ex2 boasts a solid build quality, utilizing durable polymer materials. The weight increase from the extension is noticeable but not overly burdensome, maintaining a reasonable balance.

The kit installs relatively easily, following a straightforward process similar to other magazine extensions. While installation is simple, the feeding reliability issues are a significant downside to the design of the magazine extension.

The material feels durable and should withstand regular use and handling. The kit has a functional design, but the issues with consistently feeding rounds from the magazine overshadow the build quality.

Durability & Maintenance

The KRISS USA Mag-Ex2 appears durable and well-constructed. Disassembly for cleaning and maintenance is simple, allowing for easy removal of dirt and debris.

With its solid construction using polymer, it should withstand a reasonable amount of wear and tear. Regular cleaning and lubrication of the magazine spring will help maintain optimal performance.

Easy maintenance helps to extend the life of the magazine. However, it does not address the issues with consistent feeding.

Accessories and Customization Options

The KRISS USA Mag-Ex2 kit includes the extended baseplate, outer sleeve, and extended spring. It is intended as a standalone upgrade for existing Glock 21 magazines and does not offer much in the way of customization beyond that.

While there are no specific accessories designed solely for the KRISS USA Mag-Ex2, it is compatible with any standard Glock 21 magazine pouches. It integrates seamlessly with existing gear and load-bearing equipment.

The limited customization options are a minor drawback. The kit is functional as is, but users looking for more personalized options may be disappointed.

Pros and Cons of KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit

Who Should Buy KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit?

The KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit is ideal for competitive shooters or recreational shooters looking for high-capacity magazines. It is also ideal for those who are comfortable troubleshooting and modifying their firearms accessories to achieve optimal performance.

Individuals prioritizing absolute reliability and consistency in their magazines should avoid this product. Those unwilling to invest time and effort into fine-tuning their equipment may be disappointed.

Potential must-have modifications may include aftermarket springs or followers to improve feeding reliability. Experimenting with different ammunition types might also yield better results.

Conclusion on KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit

The KRISS USA Mag-Ex2 Glock 21 Gen 3-5 . 45 ACP 30 Round Pistol Magazine Extension Kit offers a compelling promise of significantly increased magazine capacity. However, the inconsistent feeding issues detract from its overall value and utility.

Given its price of $31.99, the KRISS USA Mag-Ex2 may be worth considering for those willing to tinker with it. It might be a worthwhile gamble for those comfortable with firearm modifications.

While the concept is appealing, I cannot wholeheartedly recommend the KRISS USA Mag-Ex2 in its current form due to its reliability issues. Until those issues are addressed, proceed with caution.