CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine Review

First Impressions of CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine is a dedicated magazine designed to convert your AR-15 platform into a .22 LR plinker, offering a cost-effective and enjoyable way to train or simply have fun at the range. CMMG has a solid reputation in the AR world, especially with their .22 LR conversion kits, and this magazine is a key component of that system. It promises reliable feeding and function in AR-15 platforms chambered in .22LR.

I’ve been looking for a way to train more without breaking the bank on centerfire ammunition. The rising cost of 5.56/.223 has made frequent range trips unsustainable, so converting my AR-15 to .22 LR seemed like a smart solution. A reliable magazine is crucial for any firearm, but especially with .22 LR conversions which can be notoriously finicky.

Out of the box, the CMMG magazine feels solid, with a durable polymer construction. The magazine’s exterior styling closely resembles that of centerfire AR magazines which is a nice touch for maintaining the familiar feel of an AR-15. The weight is comparable to a standard AR magazine, even though it holds significantly smaller .22LR rounds.

Compared to some cheaper aftermarket .22 LR magazines I’ve seen, this one definitely feels more robust and well-made. I previously considered some generic magazines, but the mixed reviews about feeding issues pushed me towards a dedicated CMMG product. My first impression is positive; it appears to be a quality piece of equipment designed to handle the specific demands of a .22 LR conversion.

Initial impressions are optimistic. I’m hoping the CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine lives up to its promise of reliable feeding and function, turning my AR-15 into a cost-effective training tool.


Real-World Testing: Putting CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine to the Test

First Use Experience

I tested the CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine at my local outdoor shooting range on a sunny, slightly breezy afternoon. I used it with my AR-15, equipped with a CMMG .22 LR conversion kit. My ammunition of choice was CCI Mini-Mags, known for their reliability in .22 LR platforms.

The magazine was surprisingly easy to load, although the 10-round capacity meant more frequent reloads. The feeding was smooth and consistent during my first few magazines. I ran approximately 100 rounds through the magazine during this initial session, and only experienced one minor feeding issue which could have easily been related to a dirty chamber as opposed to the magazine.

Extended Use & Reliability

After several weeks of using the CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine in multiple range sessions, it has held up remarkably well. I’ve put roughly 500 rounds through it with only a handful of failures, all of which were easily cleared. The magazine shows no significant signs of wear and tear.

Cleaning the magazine is straightforward. I simply disassemble it and use a brush and solvent to remove any accumulated carbon and debris. This maintenance routine keeps the magazine functioning optimally. I have definitely found this to be more reliable and robust than some of the cheaper .22 LR magazines I’ve used in the past with other rifles.

Breaking Down the Features of CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine

Specifications

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine is designed specifically for use with CMMG .22 LR conversion kits and dedicated CMMG Mk4 .22 LR rifles within an AR-15 platform. It features a 10-round capacity, making it compliant in states with magazine capacity restrictions. The magazine body is constructed from a durable black polymer.

It is chambered for .22 Long Rifle ammunition, and is compatible with mil-spec AR-15 lower receivers. It is designed to mimic the styling of standard AR-15 magazines. The specifications are important because they ensure compatibility and reliable feeding in your .22 LR conversion.

Performance & Functionality

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine excels in providing reliable feeding for .22 LR ammunition in an AR-15 platform. Its consistent performance is paramount for enjoyable and effective training. While 10 rounds may seem limiting to some, it forces more frequent reloading practice.

The magazine’s primary strength lies in its compatibility and reliability. Some AR-15 owners have struggled to get .22LR conversions to function reliably, which is not the case here. There is little room for improvement, other than perhaps offering higher-capacity versions where legally permissible. Overall, it meets and exceeds my expectations for a dedicated .22 LR magazine.

Design & Ergonomics

The magazine is constructed from a sturdy polymer, which offers a good balance of durability and weight. Its design closely resembles a standard AR-15 magazine, maintaining the familiar feel and handling. The design ensures it fits securely in the magazine well without any wobble.

The magazine is incredibly user-friendly. Loading is straightforward, and the magazine seats positively in the AR-15’s magwell. There is virtually no learning curve.

Durability & Maintenance

The durable polymer construction suggests a long lifespan with proper care. After several range sessions, there are no visible signs of stress or damage. Maintaining the magazine is simple, requiring only occasional cleaning to remove any accumulated debris.

Disassembling the magazine for cleaning is quick and easy, allowing for thorough maintenance. It is safe to say that this magazine will last for years if properly maintained.

Accessories and Customization Options

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine does not have many accessories or customization options, as it is a relatively simple component. Its primary function is to reliably feed ammunition. It is compatible with all standard AR-15 lower receivers, which opens up the possibility of using aftermarket magazine releases if desired.

There aren’t many customization options, but its compatibility with standard AR-15 platforms means you can use aftermarket magazine releases.

Pros and Cons of CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine

Pros

  • Reliable Feeding: The magazine ensures consistent and smooth feeding of .22 LR ammunition.
  • Durable Construction: Its robust polymer body withstands regular use and handling.
  • AR-15 Compatibility: Designed to work seamlessly with CMMG .22 LR conversion kits and dedicated Mk4 .22 LR rifles in AR-15 platforms.
  • Easy to Maintain: Simple disassembly allows for quick and thorough cleaning.
  • Familiar Design: Mimics the look and feel of standard AR-15 magazines.

Cons

  • Limited Capacity: The 10-round capacity may require more frequent reloads for some users.
  • Specific Use: Only compatible with CMMG .22 LR conversion kits and dedicated Mk4 .22 LR rifles; not a general-purpose magazine.


Who Should Buy CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine?

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine is perfect for AR-15 owners who want to convert their rifle to .22 LR for cost-effective training or recreational shooting. It is also great for those looking for a reliable and durable magazine for their CMMG Mk4 .22 LR rifle. This magazine is ideal for shooters in states with magazine capacity restrictions.

Someone who requires higher-capacity magazines or who does not own a CMMG .22 LR conversion kit or a CMMG Mk4 .22 LR rifle should skip this product. A .22LR speed loader would be a must-have accessory.

Conclusion on CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine

The CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine is a well-designed, reliable, and durable magazine that enhances the .22 LR conversion experience for AR-15 owners. The price is justified by its consistent performance and robust construction.

I would definitely recommend this magazine to anyone using a CMMG .22 LR conversion kit or owning a CMMG Mk4 .22 LR rifle. If you’re looking to extend your range time without emptying your wallet, then equip your AR-15 with a CMMG .22 LR conversion kit and the CMMG Mk4/AR-15 .22 LR 10 Round Rifle Magazine today!

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