Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine Review

First Impressions of Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine

The world of AR-15 customization is vast, but the Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine immediately grabbed my attention with its promise of reliable 9mm AR-15 functionality without the need for a magwell adapter. As someone who’s spent years tweaking and optimizing AR platforms, I was eager to see if this magazine could deliver on its claims of smooth feeding, consistent ejection, and last-round hold-open with standard blowback systems. Could this be the simple solution for 9mm AR builds that many have been searching for?

My journey to finding the Mean Arms Ejectored ExoMag stemmed from a personal project: a dedicated 9mm AR pistol build for close-quarters training and home defense. I’ve tried various conversion kits and dedicated lowers in the past, often encountering feeding issues or ejection problems that plagued the reliability I expected from an AR platform. The promise of a magazine-based solution that eliminates those issues was incredibly appealing.

Upon receiving the Mean Arms Ejectored ExoMag, my initial impression was positive. The polymer construction felt robust, and the overall build quality seemed solid, suggesting it could withstand the rigors of regular use. The weight was comparable to a standard AR-15 magazine, and the built-in ejector mechanism appeared well-integrated into the design.

Compared to other 9mm conversion magazines I’ve used (specifically, the CMMG ARC magazine and a Glock magazine adapter block), the Mean Arms Ejectored ExoMag stood out for its simplicity. Other options required either modification of existing AR magazines or the use of Glock magazines, which felt out of place in an AR lower. The ExoMag offered a cleaner, more integrated solution that promised better reliability.

My first impression was one of cautious optimism. The design looked promising, but the true test would be how it performed on the range. The asking price of $239.99 definitely sets a high bar, and my expectations were therefore commensurately high that it would perform flawlessly.

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Real-World Testing: Putting Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine to the Test

First Use Experience

My initial testing of the Mean Arms Ejectored ExoMag took place at my local outdoor shooting range, a familiar environment for evaluating new gear. I paired it with my 9mm AR pistol build, which features a standard blowback operating system and a 5.5-inch barrel. I brought a variety of 9mm ammunition, ranging from 115-grain FMJ to 147-grain hollow points, to assess its feeding reliability with different bullet profiles.

The magazine performed admirably in relatively dry conditions, reliably feeding the majority of ammunition I tested. It seemed to function best with the 115-grain FMJ rounds, where I was able to achieve several rapid fire strings without issue. I did experience a few failures to feed with the 147-grain hollow points, where the rounds would occasionally catch on the feed ramp.

The magazine was relatively easy to use, although I did notice a slight learning curve when it came to loading the last few rounds. The high-tensile steel spring is strong, which can make fully loading the 32-round capacity a bit challenging. After the first few uses, however, this became less of an issue.

During my first range session, I was surprised by the effectiveness of the built-in ejector. Spent casings ejected consistently and cleanly, avoiding the erratic ejection patterns I’ve experienced with other 9mm AR setups.

Extended Use & Reliability

After several weeks of regular use, the Mean Arms Ejectored ExoMag has largely held up well, but with a few caveats. I’ve put approximately 500 rounds through it, and the polymer construction shows no significant signs of wear and tear beyond some minor scuff marks. The magazine body is still sturdy and exhibits no cracking or deformation.

While the feeding reliability has remained generally consistent, I’ve continued to experience occasional failures to feed with certain types of ammunition, particularly the aforementioned 147-grain hollow points. The magazine seems to be more sensitive to ammunition profile than standard AR-15 magazines.

Maintaining the Mean Arms Ejectored ExoMag is straightforward. Disassembly is simple, allowing for easy cleaning of the magazine body, follower, and spring. The polymer construction is resistant to corrosion, which simplifies maintenance after exposure to moisture or humidity.

Compared to my previous experiences with other 9mm AR magazines and conversion kits, the Mean Arms Ejectored ExoMag offers a more reliable and streamlined solution. While it’s not perfect, the integrated ejector and consistent feeding with common 9mm ammunition make it a significant improvement over alternatives that require more modification and tinkering. The magazine continues to impress, but the high price point still lingers in the back of my mind when weighing its overall value.

Breaking Down the Features of Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine

Specifications

• Manufacturer: Mean Arms.

• Caliber: 9mm Luger, catering to the popular pistol cartridge.

• Magazine Capacity: 32 Round, providing ample firepower for various applications.

• Gun Make: AR Platform.

• Gun Model: AR-15, designed for compatibility with standard AR-15 lower receivers.

• Material: Injection-molded polymer construction ensures durability and corrosion resistance.

• Color: Black, providing a sleek and tactical appearance.

• Features: Built-in ejector, compatible with STANAG-pattern lower receivers, last round hold-open feature, and durable steel spring.

The 9mm Luger caliber makes this magazine ideal for those who want to use a common and affordable pistol cartridge in their AR-15 platform. The 32-round capacity offers a substantial advantage in scenarios where a high volume of fire is necessary, such as competition shooting or tactical training. The built-in ejector is a critical feature, as it ensures reliable ejection of spent casings, a common problem in 9mm AR conversions.

Performance & Functionality

The Mean Arms Ejectored ExoMag generally performs its job well, providing reliable feeding and ejection of 9mm ammunition in an AR-15 platform. Its greatest strength lies in its simplicity and ease of use – it requires no special tools or modifications to install and use.

The magazine’s primary weakness is its sensitivity to ammunition type. As previously mentioned, I experienced occasional failures to feed with certain types of hollow-point ammunition. The last round hold-open feature also worked intermittently, sometimes failing to engage after the final round was fired.

While the Mean Arms Ejectored ExoMag is not without its flaws, it largely meets my expectations for a 9mm AR magazine. It offers a more reliable and user-friendly experience than many other conversion options on the market.

Design & Ergonomics

The Mean Arms Ejectored ExoMag features a straightforward and functional design. The injection-molded polymer construction feels robust and well-made, providing confidence in its durability. The weight is comparable to a standard AR-15 magazine, which helps maintain the overall balance of the rifle.

The magazine is relatively user-friendly, requiring no special tools or modifications for installation or use. The only slight learning curve comes with loading the final few rounds, as the spring tension is quite strong.

Durability & Maintenance

Based on my experience, the Mean Arms Ejectored ExoMag appears to be quite durable. The polymer construction has held up well under regular use, showing no significant signs of wear and tear. With proper care and maintenance, it should last for a reasonable amount of time.

Maintaining the magazine is simple and straightforward. Disassembly is easy, allowing for thorough cleaning and inspection. The polymer construction is resistant to corrosion, which simplifies maintenance and prolongs the magazine’s lifespan.

Accessories and Customization Options

The Mean Arms Ejectored ExoMag does not come with any included accessories beyond the magazine itself. Customization options are limited, as the magazine is designed as a complete, self-contained unit.

The magazine is compatible with any AR-15 lower receiver that accepts standard STANAG-pattern magazines. It is also compatible with a variety of 9mm AR-15 uppers and bolt carrier groups.

Pros and Cons of Mean Arms Ejectored ExoMag, AR-15, 32 Round Rifle Magazine