First Impressions of Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw promises to be a comprehensive upgrade solution for arguably the most prolific handgun platform ever made. With the aftermarket Glock scene being as saturated as it is, standing out requires a blend of quality, value, and a genuine improvement over stock components. Centennial Defense Systems aims to deliver exactly that with this kit, providing all the necessary small parts to either refresh an aging slide or complete a new custom build.
For years I’ve been building and modifying Glocks, always chasing that perfect balance of reliability and performance. Factory Glock parts are dependable, no doubt, but sometimes you crave a bit more, a touch of personalization, or simply a replacement for worn components. I was specifically looking for a complete, high-quality kit to replace the internals of my well-worn Gen 3 Glock 17, hoping to breathe new life into a pistol that’s seen countless rounds and training sessions.
Upon receiving the kit, the first thing I noticed was the clean, organized packaging. Each component was individually bagged, preventing any scratches or damage during transit. The stainless steel parts gleamed, suggesting a higher level of fit and finish compared to some of the cheaper, mass-produced kits I’ve encountered in the past. Immediately, the attention to detail in the Centennial Defense Systems kit set it apart.
Compared to a basic OEM Glock upper parts kit and a similarly priced kit from a lesser-known manufacturer, the Centennial Defense Systems kit felt more substantial. The finish appeared more durable, and the flat-face screw (more on that later) was a unique touch that piqued my interest. I chose this kit over others because of the brand’s reputation for quality and the specific mention of stainless steel construction, promising better corrosion resistance and longevity.
Initially, I was cautiously optimistic. The kit looked good, but the real test would be in the installation and performance. There’s always that underlying concern whether aftermarket parts will truly improve a Glock’s legendary reliability, or introduce unforeseen issues.
Real-World Testing: Putting Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw to the Test
First Use Experience
My primary testing ground was the local outdoor range, where I subjected my Glock 17, now equipped with the Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw, to a rigorous series of drills. I ran through various magazine dumps, accuracy tests at different distances, and even some failure-to-eject drills to see how the new extractor would perform. The weather was moderately dusty with a slight breeze – conditions that can easily highlight any weaknesses in a firearm’s components.
Installation was straightforward, thanks to the parts fitting precisely and as expected. I paid particular attention to the extractor and firing pin channel, ensuring everything was properly lubricated and seated correctly. The initial range session was promising; the action felt smoother, and the ejection pattern was consistent and strong. No immediate malfunctions or issues arose during the first few hundred rounds.
The only thing that I noticed immediately was the flat-face screw made disassembly slightly easier. It felt like I had a better purchase on it with my Glock tool.
Extended Use & Reliability
After several months of regular use, the Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw has proven to be impressively durable. I’ve put approximately 2000 rounds through the Glock since installing the kit, encompassing a variety of ammunition types, from cheap bulk ammo to premium self-defense rounds. There are no noticeable signs of wear and tear on any of the components.
Maintenance has been a breeze. The stainless steel construction makes cleaning simple, and I’ve experienced no issues with rust or corrosion, even after exposing the pistol to humid conditions during several outdoor training sessions. Routine cleaning and lubrication have been sufficient to keep the pistol running smoothly.
In comparison to my previous experiences with other aftermarket Glock parts kits, the Centennial Defense Systems kit stands out for its reliability and consistency. It has performed flawlessly, instilling confidence in its ability to withstand demanding use. I replaced a worn extractor from another brand in this Glock, and the new extractor has had no issues, when the previous would occasionally cause a malfunction.
Breaking Down the Features of Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw
Specifications
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw is a comprehensive set of components designed to upgrade or complete the upper receiver of Gen 1-3 Glock 17 pistols. The kit includes the following parts:
- Firing pin assembly
- Extractor assembly
- Firing pin safety
- Firing pin spring
- Extractor depressor plunger
- Extractor depressor plunger spring
- Channel liner
- Slide cover plate
- Flat Face Screw
All components are manufactured from stainless steel. This provides significant advantages in terms of corrosion resistance and overall durability. The kit is specifically designed for Glock 17 models in Generations 1 through 3, ensuring compatibility with a wide range of existing pistols.
These specifications matter because they directly impact the pistol’s reliability, longevity, and overall performance. Stainless steel construction ensures that the parts can withstand the rigors of regular use and exposure to harsh environmental conditions. This offers peace of mind to users who rely on their Glocks for self-defense, competition, or duty purposes.
Performance & Functionality
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw has significantly improved the performance and functionality of my Glock 17. The action feels smoother, the ejection pattern is more consistent, and the trigger reset is crisper. Accuracy has also improved slightly, likely due to the enhanced consistency of the firing pin assembly.
The kit’s strengths lie in its reliability, durability, and ease of installation. It has performed flawlessly in various conditions, from the range to outdoor training sessions. If there was one area that could use improvement, it would be providing more detailed installation instructions for those less familiar with Glock assembly.
Overall, the kit exceeds my expectations. It has breathed new life into my aging Glock 17, enhancing its performance and reliability.
Design & Ergonomics
The build quality of the Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw is excellent. The stainless steel components are precisely machined, and the finish is smooth and consistent. The parts fit perfectly into the Glock 17 slide, requiring no modifications or adjustments.
The kit is user-friendly, even for those with limited experience working on firearms. However, as mentioned earlier, more detailed installation instructions would be beneficial.
Durability & Maintenance
The stainless steel construction of the Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw ensures that it will last for many years with proper care. The parts are resistant to rust, corrosion, and wear, making them ideal for use in demanding environments.
Maintenance is simple; routine cleaning and lubrication are all that is required to keep the kit functioning properly.
Accessories and Customization Options
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw does not include any accessories beyond the core components. However, it is fully compatible with a wide range of aftermarket Glock accessories, including:
- Optics (red dot sights, holographic sights)
- Barrels (threaded barrels, match-grade barrels)
- Triggers (aftermarket triggers, trigger connectors)
- Grips (polymer grips, stippled grips)
The kit is designed to work seamlessly with these accessories, allowing users to customize their Glocks to meet their specific needs and preferences.
Pros and Cons of Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw
Pros
- Exceptional Reliability: The kit has performed flawlessly in various conditions and with different types of ammunition.
- Enhanced Durability: The stainless steel construction ensures long-lasting performance and resistance to wear and tear.
- Smooth Action: The upgraded components contribute to a smoother action and more consistent trigger reset.
- Easy Installation: The parts fit perfectly into the Glock 17 slide, requiring no modifications.
- Value for Money: The kit provides a comprehensive upgrade solution at a competitive price point.
Cons
- Limited Instructions: More detailed installation instructions would be beneficial for novice users.
- No Included Accessories: The kit does not include any accessories beyond the core components.
Who Should Buy Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw?
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw is perfect for:
- Glock owners looking to refresh or upgrade their pistols.
- Those completing custom Glock builds.
- Shooters who demand reliability and durability from their firearms.
Who should skip this product?
- Those seeking immediate, drop-in performance upgrades without any disassembly or assembly.
- Individuals who are completely unfamiliar with Glock disassembly and assembly.
Must-have accessories or modifications?
- High-quality Glock disassembly tool.
- Gun oil or lubricant.
- Detailed Glock assembly/disassembly guide or video.
Conclusion on Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw
The Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw is a worthwhile investment for any Glock owner looking to improve the reliability, durability, and performance of their pistol. The stainless steel construction, precise machining, and smooth action make this kit a standout in the crowded aftermarket Glock parts market.
The price is justified by the quality of the components and the noticeable improvement in performance. I would personally recommend this kit to anyone looking to upgrade their Glock 17.
If you’re ready to breathe new life into your Glock or complete your custom build with confidence, the Centennial Defense Systems MOD2 Upper Parts Kit for Gen 1-3 Glock 17 w/Flat Face Screw is an excellent choice. Don’t settle for anything less than the best when it comes to your firearm’s reliability and performance. Upgrade your Glock today!