First Thoughts on the C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin
The C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin promises to be a reliable feeding solution for AR-platform rifles chambered in the increasingly popular 350 Legend cartridge. Designed with the AR-15 form factor in mind, this 20-round magazine aims to provide hunters and sport shooters with a greater capacity option compared to the standard 5 or 10 round magazines often mandated by hunting regulations in certain states. The buzz surrounding the 350 Legend cartridge as a straight-walled option legal for deer hunting in previously shotgun-only zones caught my attention, and the need for reliable, higher-capacity magazines for my AR build became immediately apparent.
My initial search focused on finding a magazine that could reliably feed the 350 Legend rounds, addressing a primary pain point for many AR builders in this caliber. The market is saturated with AR-15 magazines, but few are specifically designed for the unique dimensions of the 350 Legend. I decided on the C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable because of the brand recognition and the promise of a dedicated design for the caliber.
Upon receiving the magazines, my first impression was mixed. The stainless steel construction felt solid and durable, but the lack of anti-tilt follower was immediately concerning given the reputation of 350 Legend magazines for feeding issues. Compared to a standard 5.56 AR magazine, the internal geometry looked visibly different, with a wider internal space intended to accommodate the larger diameter 350 Legend round. Disappointment began to set in as I manipulated the rounds within the magazine, noting the significant play and lack of smooth upward pressure.
Real-World Testing: Putting C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin to the Test
First Use Experience
My first range trip with the C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable was a disaster. I attempted to use the magazines in my dedicated 350 Legend AR build, meticulously assembled with a high-quality barrel and bolt. The magazines failed to feed a single round.
The rounds would nose-dive dramatically within the magazine during cycling, preventing proper engagement with the bolt. In multiple attempts, the bolt simply slid over the rounds, failing to strip them from the magazine and chamber them. The experience was frustrating, and it quickly became clear that these magazines were not performing as advertised.
Extended Use & Reliability
“Extended use” is a misnomer in this case, as the magazines never functioned reliably enough to constitute any meaningful period of use. After numerous attempts to diagnose and remedy the feeding issues, including experimenting with different buffer weights and gas system adjustments, I concluded that the magazine design itself was fundamentally flawed. The DURAMAG SS 350 Legend magazines showed absolutely no signs of improvement over time.
The stainless steel construction appeared robust, with no visible wear or deformation despite the repeated loading and unloading cycles. However, the magazine’s robust build quality is irrelevant when the feeding mechanism is non-functional. Maintenance was simple; however, the inability to use the magazines made cleaning pointless. These magazines severely underperformed, and provided a negative experience.
Breaking Down the Features of C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin
Specifications
Caliber: 350 Legend. The magazine is explicitly designed to accommodate the dimensions of the 350 Legend cartridge.
Capacity: 20 rounds. It provides a higher capacity for the 350 Legend cartridge compared to standard hunting magazines.
Origin: Aftermarket. The magazine is produced by C Products Defense Inc, an aftermarket manufacturer specializing in magazines and related accessories.
Material: Stainless Steel. The stainless steel construction is intended for durability and resistance to corrosion.
These specifications suggest a magazine designed for durability and increased capacity, suitable for hunters and sport shooters using the 350 Legend in AR-15 platforms. However, these specifications are meaningless without functionality.
Performance & Functionality
The C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable failed to perform its primary function: reliably feeding rounds into the chamber of an AR-15 rifle. The lack of an anti-tilt follower and the inadequate internal geometry resulted in consistent feeding failures. Its only strength is that it holds 20 rounds of ammunition.
The magazines did not meet my expectations and, based on my testing, are fundamentally flawed in their design. Improvement is needed in follower design, spring tension, and internal magazine geometry.
Design & Ergonomics
The stainless steel construction felt robust and well-made in hand. The weight was comparable to other 20-round AR-15 magazines. However, the lack of any ergonomic enhancements or specialized features left me unimpressed.
There was no learning curve involved, however the overall design failed to account for the unique characteristics of the 350 Legend cartridge.
Durability & Maintenance
The stainless steel construction suggests that the magazine will last a long time. Cleaning and maintenance were simple due to the basic design and materials used. The build quality is irrelevant if the magazine doesn’t work.
Accessories and Customization Options
There are no accessories that come with the C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable. Given the magazines’ inability to function as designed, no customization options would be worthwhile.
Pros and Cons of C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin
Pros
- Stainless steel construction for durability.
- 20-round capacity for increased firepower (in theory).
- Compatible with AR-15 platforms chambered in 350 Legend.
Cons
- Consistent feeding failures due to poor follower design and magazine geometry.
- Does not reliably feed rounds into the chamber of an AR-15 rifle.
- The $17.99 price point becomes a waste of money given the lack of functionality.
Who Should Buy C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin?
The C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable is not recommended for anyone looking for a reliable magazine for their 350 Legend AR-15. Hunters, sport shooters, and anyone relying on their rifle for self-defense should avoid this product due to its unreliable feeding.
Anyone looking for a functional magazine should skip this product. There are no must-have accessories or modifications that can salvage the performance of this magazine.
Conclusion on C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable – 350 Legend Caliber, Aftermarket Origin
The C Products Defense Inc DURAMAG SS 350 Legend AR Style 20rd Detachable is a disappointing product that fails to deliver on its promise of reliable feeding for 350 Legend AR-15 rifles. The $17.99 price tag is not justified given the magazine’s inability to perform its primary function. I would not personally recommend this product to anyone.
Ammunition is expensive, and a day at the range is precious; don’t waste either on a product that doesn’t work.