CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds Review

First Thoughts on the CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds

In the realm of AR-15 pistol caliber carbines, reliability and capacity are king. The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds, a high-capacity magazine designed specifically for CMMG‘s Radial Delayed Blowback 9mm AR platform, promises to deliver both. I’ve spent years dealing with various AR-9 magazine solutions, and the promise of increased capacity with reliable feeding is always tempting.

I’ve tinkered with countless Glock conversions, stick mags, and other AR-9 mag options, each with its own set of quirks and compromises. The need for a higher capacity magazine that fits seamlessly into my existing AR-15 mag pouches and eliminates the common feeding issues I’ve seen with other conversions is what brought me to try this product. Upon unboxing, I was immediately drawn to the robust polymer construction and the clean lines that mimic a standard 5.56 magazine. It felt solid in my hand, a good sign considering the abuse magazines typically endure.

Compared to some finicky Glock magazine conversions or modified UZI mags I’ve used in the past, the CMMG magazine felt purpose-built and well-engineered. I chose it over a few other options because of CMMG’s reputation for quality and the promise of a direct fit with their Radial Delayed Blowback system, which I trust. My initial reaction was one of cautious optimism; finally, a 9mm AR mag that might actually work!

Real-World Testing: Putting CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds to the Test

First Use Experience

I tested the CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds at my local shooting range, using it with my CMMG Radial Delayed Blowback 9mm upper on a standard AR-15 lower. The weather was typical for a summer afternoon – hot and humid. The magazine loaded easily and seated firmly into the magwell.

The first few strings of fire were flawless. I ran approximately 150 rounds through the magazine, varying between 115gr FMJ and 124gr JHP rounds. I experienced zero malfunctions, a notable improvement over some of the other magazines I’ve used which tend to choke on anything other than ball ammo. The magazine felt very natural to reload, and the extra 3 rounds was noticeable.

Extended Use & Reliability

After several months of use, the CMMG magazine has proven to be remarkably reliable. I’ve put over 1000 rounds through it, including various types of ammunition and under different conditions. The magazine shows only minor signs of wear and tear, mostly superficial scuff marks on the polymer body.

Cleaning is a breeze; a quick wipe-down with a cloth is usually sufficient. I also periodically disassemble it for a more thorough cleaning, which is straightforward. Compared to previous experiences with finicky magazines that required constant tweaking, the CMMG magazine has been a breath of fresh air, consistently outperforming my expectations.

Breaking Down the Features of CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds

Specifications

The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds is designed for use with AR-15 platforms chambered in 9mm and utilizing the CMMG Radial Delayed Blowback operating system. It is chambered in 9mm Caliber. The magazine holds 33 Rounds, providing a significant capacity increase over standard pistol magazines.

The magazine’s external dimensions are intentionally designed to closely match those of standard 5.56 AR-15 magazines. This cross-compatibility with existing mag pouches and carriers is a major advantage. The magazine body is constructed from a durable polymer.

Performance & Functionality

The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds performs its intended job flawlessly, reliably feeding 9mm rounds into my AR-9. Its high capacity is a definite strength. I found zero malfunctions after thousands of rounds.

A slight improvement could be made with an easier-to-disassemble baseplate for cleaning, but overall, the magazine meets and exceeds my expectations. It provides reliable feeding and high capacity in a familiar AR-15 package.

Design & Ergonomics

The magazine’s build quality is excellent, thanks to the robust polymer construction. The weight is reasonable for a high-capacity magazine. The design mirrors a standard AR mag, which ensures a natural and comfortable feel in the hand.

The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds is incredibly user-friendly. There’s virtually no learning curve.

Durability & Maintenance

Given its sturdy construction, I expect the CMMG magazine to last for a long time. A quick wipe down after use and occasional disassembly for deeper cleaning are usually sufficient to keep it running smoothly.

Accessories and Customization Options

The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds doesn’t require any specific accessories to function. Its main advantage is compatibility with standard AR-15 magazine pouches. It also offers the ability to use any standard AR-15 lower receiver that’s compatible with the CMMG Radial Delayed Blowback upper.

Pros and Cons of CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds

Pros

  • High Capacity: 33 rounds provides a significant advantage in practical shooting scenarios.
  • Reliable Feeding: Consistently feeds various types of ammunition.
  • Durable Construction: Built to withstand heavy use.
  • AR-15 Magazine Compatibility: Fits in standard AR-15 mag pouches.
  • Easy to Maintain: Simple to clean and disassemble.

Cons

  • Baseplate can be slightly difficult to remove for cleaning.
  • Only compatible with CMMG‘s Radial Delayed Blowback system.


Who Should Buy CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds?

Perfect for: Competitive shooters who need high capacity, home defense enthusiasts looking for reliable firepower, and recreational shooters who simply enjoy spending less time reloading. Anyone who uses a CMMG Radial Delayed Blowback 9mm AR-15 will benefit greatly.

Who should skip this product? Those using alternative 9mm AR-15 systems that do not utilize the CMMG Radial Delayed Blowback system.

Must-have accessories or modifications? None are truly essential, but a quality magazine loader can be helpful for quickly filling the 33-round capacity.

Conclusion on CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds

The CMMG 94AFC9F MAG 9 MK4/AR15 G2 33R – 9mm Caliber, 33 Rounds is a well-designed, reliable, and high-capacity magazine that’s perfect for anyone running a CMMG Radial Delayed Blowback 9mm AR-15. At $26.99, the price is justified by the increase in capacity and reliability compared to other 9mm AR magazine solutions.

I would absolutely recommend it to anyone looking to maximize the potential of their 9mm AR platform. Invest in a few of these magazines; you won’t be disappointed!


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