First Impressions of Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version
The Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version offers a unique solution for AR-15 enthusiasts looking to diversify their platforms without the hassle of dedicated 9mm lowers. Mean Arms promises a simple conversion of existing PMAGs, allowing users to utilize their 5.56/.223 lowers with 9mm uppers and Glock or Colt-style bolt carrier groups. I was intrigued by the potential cost savings and convenience, hoping to streamline my shooting experience and reduce the need for multiple dedicated platforms.
My interest in this product stemmed from a desire to simplify my AR-15 setup. Juggling multiple lowers for different calibers can be a logistical headache, especially when space is at a premium. I unboxed the EndoMag insert, and my initial impression was of a well-machined, albeit simple, piece of kit. The polymer felt robust, and the metal components appeared durable.
Compared to dedicated 9mm magazines or complete lower conversions, the Mean Arms EndoMag stood out for its promise of simplicity and affordability. While a dedicated lower offers potentially greater reliability and optimized ergonomics, the EndoMag offers a cost-effective entry point. I chose the EndoMag because of its appeal as a quick and reversible conversion. My initial reaction was cautiously optimistic, hoping the real-world performance would live up to the claims.
Real-World Testing: Putting Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version to the Test
First Use Experience
I first tested the Mean Arms EndoMag at my local indoor shooting range. I wanted a controlled environment to assess its reliability and feeding characteristics. The range offered a consistent environment, allowing me to focus on the insert’s performance with various 9mm ammunition types.
The EndoMag performed well with standard FMJ rounds. However, I encountered occasional feeding issues with hollow points. It took some time to properly seat the insert and get comfortable with loading the magazine. I did not anticipate the degree of fine-tuning required for optimal performance.
Extended Use & Reliability
After several range sessions spanning a couple of months, the Mean Arms EndoMag has proven to be somewhat finicky. While it functions reliably with certain ammunition types, it remains prone to occasional malfunctions with others. I have seen no noticeable wear and tear on the insert itself. The plastic components appear to be holding up well.
Maintaining the EndoMag is relatively simple. I clean it along with my other magazines after each range trip. Compared to dedicated 9mm magazines, the EndoMag requires a bit more attention to detail during cleaning and assembly. In my experience, a dedicated 9mm lower and magazines still offer greater reliability.
Breaking Down the Features of Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version
Specifications
The Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version boasts several key specifications. It is designed to convert standard 5.56/.223 PMAGs (Gen 2 and 3) into 9mm magazines compatible with AR-15 platforms using Glock or Colt-style bolt carrier groups and CMMG Radial Delayed Blowback system. The magazine capacity is listed as 10 rounds.
The Mean Arms EndoMag is chambered for 9mm Luger. It is specifically designed for AR-15 platforms. The ejectorless design is a crucial feature, relying on the CMMG Radial Delayed Blowback system for proper ejection. This is a key difference from other 9mm AR conversion systems.
Performance & Functionality
The Mean Arms EndoMag partially fulfills its promise of a simple and cost-effective conversion. When properly installed and used with compatible ammunition, it cycles reliably and allows for quick caliber changes. However, the reliability is not on par with dedicated 9mm platforms.
The primary strength lies in its convenience and affordability. The weakness is its sensitivity to ammunition type and the potential for feeding issues. The product generally meets expectations for casual range use, but falls short for duty or competition applications.
Design & Ergonomics
The Mean Arms EndoMag features a simple, drop-in design. It converts a standard PMAG housing into a 9mm magazine. The build quality is decent, utilizing durable polymer and metal components.
The EndoMag is user-friendly, but does require some initial setup and adjustment. There is a slight learning curve associated with loading and seating the converted magazine.
Durability & Maintenance
The Mean Arms EndoMag appears to be relatively durable. The materials are resistant to common solvents and cleaners. Maintenance is straightforward, requiring only basic cleaning and inspection.
Longevity will depend on usage and care. However, the design seems robust enough for moderate use. Repairs, if needed, would likely involve replacing the entire insert rather than individual components.
Accessories and Customization Options
The Mean Arms EndoMag does not come with any included accessories beyond the insert itself. Customization options are limited to the PMAG housing used in conjunction with the insert. Compatibility with various PMAG accessories like mag pouches and caliber indicators remains.
You can further customize your setup by changing the baseplate or using different PMAG generations. The core functionality relies on the Mean Arms EndoMag, with customization options focused on supporting components.
Pros and Cons of Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version
Pros
- Simple and affordable conversion of existing PMAGs.
- Allows the use of 9mm uppers on standard AR-15 lowers.
- Utilizes Glock or Colt-style bolt carrier groups and CMMG Radial Delayed Blowback system.
- Easy to maintain and clean.
- Compatible with most PMAG accessories.
Cons
- Ammunition-sensitive and prone to occasional feeding issues.
- Requires careful installation and adjustment for optimal performance.
- Not as reliable as dedicated 9mm platforms.
Who Should Buy Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version?
The Mean Arms EndoMag is perfect for budget-conscious shooters who want to experiment with a 9mm AR-15 without investing in a dedicated lower. It is also suitable for those who value convenience and the ability to quickly switch between calibers using existing PMAGs. This product is ideal for casual range use and recreational shooting.
This product should be skipped by individuals seeking maximum reliability for duty, competition, or self-defense applications. It’s also not ideal for those who primarily use hollow point ammunition. A must-have modification is thorough testing with your preferred ammunition to ensure reliable feeding.
Conclusion on Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version
The Mean Arms EndoMag 9mm Magazine Ejectorless CMMG Version offers a compelling value proposition for certain users. It provides an affordable and relatively simple way to convert existing AR-15 platforms to 9mm. However, potential buyers should be aware of its limitations, particularly its ammunition sensitivity and occasional feeding issues.
The price is justified for those seeking a budget-friendly entry into the 9mm AR-15 world. I would recommend it with the caveat that users should thoroughly test it with their preferred ammunition and be prepared to troubleshoot potential issues. It’s a good option for casual use, but not a replacement for a dedicated 9mm platform.