First Impressions of Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5
The Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5 promises enhanced ergonomics and faster magazine changes for Glock pistols. For years, I’ve struggled with the factory magazine release, finding it difficult to reach without significantly shifting my grip, especially during timed shooting drills. This upgrade aims to solve that issue, providing a more accessible and efficient way to drop magazines.
I’ve been searching for a reliable extended magazine release for my Glock 19 Gen 5 for quite some time. My primary goal was to improve my reload times during practical shooting competitions. The stock mag release required too much hand movement, costing me valuable seconds.
Upon opening the package, I immediately noted the clean machining of the Centennial Defense Systems release. The aluminum felt solid and the anodized finish looked durable. Comparing it to a Strike Industries extended magazine release I previously used, the Centennial Defense Systems offering seemed slightly less aggressive in its extension, promising better holster compatibility. My initial thought was excitement tempered with a hint of caution, hoping the slightly less aggressive extension would still provide the improved reach I needed without sacrificing comfort or reliability.
Real-World Testing: Putting Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5 to the Test
First Use Experience
I first tested the Centennial Defense Systems Extended Mag Release at my local shooting range. I ran several drills focusing on magazine changes and reloads with my Glock 19 Gen 5. The range was relatively dry, with temperatures in the mid-70s.
The extended release was noticeably easier to reach without drastically altering my grip. Magazine changes felt smoother and faster. However, I noticed that the 5lb spring felt a little stiffer than the factory spring, requiring slightly more pressure to activate the release.
Extended Use & Reliability
After several months of use, including weekly range sessions and a practical shooting competition, the Centennial Defense Systems Extended Mag Release has held up well. There are no visible signs of wear or tear on the aluminum release button. The anodized finish has resisted scratches and fading.
Maintenance has been minimal; I simply wipe it down with a lightly oiled cloth after each range visit. Compared to my previous experiences with polymer extended magazine releases, the Centennial Defense Systems aluminum construction inspires significantly more confidence in its long-term durability. I was initially concerned about the spring’s stiffness, but after a few hundred magazine changes, it feels perfectly broken in and provides a consistent release.
Breaking Down the Features of Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5
Specifications
- The Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5 is machined from high-quality 6061 aluminum. This material provides excellent strength and durability while remaining lightweight.
- It is designed to fit Gen 4-5 Glock models chambered in 9mm, .40 S&W, and .357 Sig. The compatibility ensures broad applicability across common Glock platforms.
- The kit includes a 5lb stainless steel mag catch spring. The spring provides reliable magazine retention and release.
- The extended button design facilitates easier and faster magazine swaps. This design is particularly beneficial for shooters with smaller hands or those wearing gloves.
- It is designed to be compatible with most holsters. Holster compatibility prevents the need to purchase new gear.
Performance & Functionality
The Centennial Defense Systems Extended Mag Release excels at its primary function: enabling faster and more reliable magazine changes. The extended button provides a larger contact surface, making it easier to activate the release even under stress. The 5lb spring, while initially stiff, ensures positive magazine retention and prevents accidental releases.
A minor weakness is that some users might prefer the reduced 2.5lb spring (sold separately) for even lighter magazine drops, but I found the 5lb spring to be a good balance of speed and security. The Centennial Defense Systems release meets my expectations and noticeably improves my reload times.
Design & Ergonomics
The build quality is excellent. The 6061 aluminum feels solid and the anodized finish provides a durable and attractive surface. The extended button is contoured to provide a comfortable and secure grip.
The installation process is straightforward, requiring only basic Glock disassembly knowledge. There is a slight learning curve in terms of getting used to the extended button’s position, but after a few practice sessions, it becomes second nature.
Durability & Maintenance
The aluminum construction ensures excellent long-term durability. After several months of regular use, there are no signs of wear or corrosion. Maintenance is simple, requiring only occasional cleaning and lubrication.
I expect the Centennial Defense Systems Extended Mag Release to last for many years with proper care. The robust materials and simple design contribute to its longevity.
Accessories and Customization Options
The Centennial Defense Systems kit comes with the extended mag release button and a 5lb stainless steel spring. While there are no included accessories, the user can purchase a reduced 2.5lb spring separately for a lighter trigger pull. The release is compatible with most standard Glock magazine extensions and baseplates.
The Centennial Defense Systems Extended Mag Release can be combined with aftermarket Glock triggers and slide releases to further enhance the ergonomics and performance of the firearm. Its minimalist design ensures compatibility with a wide range of aftermarket parts.
Pros and Cons of Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5
Pros
- Enhanced Ergonomics: The extended button makes magazine changes significantly easier, especially for those with smaller hands.
- Faster Reloads: The larger contact surface allows for quicker and more reliable magazine releases under stress.
- Durable Construction: Machined from 6061 aluminum with an anodized finish, ensuring long-term durability and resistance to wear.
- Easy Installation: The straightforward design allows for quick and easy installation with basic Glock disassembly skills.
- Holster Compatibility: Designed to fit in most standard Glock holsters without requiring modifications.
Cons
- Slightly Stiff Spring: The included 5lb spring may feel a bit stiff for some users initially, though it breaks in with use.
- Limited Customization: No included accessories beyond the spring and release button.
Who Should Buy Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5?
The Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5 is perfect for competitive shooters, law enforcement officers, and anyone who values faster and more reliable magazine changes on their Glock. It is also an excellent upgrade for Glock owners with smaller hands who struggle to reach the factory magazine release. Anyone seeking an edge in speed and ergonomics during reloads will benefit from this product.
Those who prioritize a very light magazine release or prefer a highly textured button should skip this product, as the 5lb spring is relatively stiff and the button’s texture is minimal. A reduced 2.5lb spring could be considered.
A must-have modification to complement this release would be aftermarket magazine baseplates to facilitate easier gripping of magazines during reloads.
Conclusion on Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5
The Centennial Defense Systems Extended Mag Release w/5lb Spring for Gen 4-5 is a well-made and effective upgrade for Gen 4-5 Glocks. The enhanced ergonomics and faster reload times make it a worthwhile investment for serious shooters. At $19.49, the price is justified by the quality of materials and the noticeable improvement in performance.
I personally recommend the Centennial Defense Systems Extended Mag Release to anyone looking to improve their Glock’s magazine change speed and ergonomics. Upgrade your Glock today and experience the difference!