First Impressions of Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit promises to be a comprehensive solution for completing a custom Glock slide. Zaffiri Precision aims to provide high-quality, American-made parts that meet or exceed OEM specifications, offering a reliable and cost-effective alternative to purchasing individual components. This kit is targeted towards experienced Glock users who enjoy building and customizing their firearms.
I embarked on a project to build a dedicated long-slide Glock for competitive shooting, primarily for improved accuracy at longer distances. I needed a reliable set of upper receiver components to complete the build, ensuring consistent performance and longevity. The Zaffiri Precision kit appeared to be a viable option considering its advertised completeness and positive user feedback, aside from some concerning reports of missing parts.
Upon receiving the kit, I noted the individually packaged components. The initial impression was somewhat mixed, with the parts looking clean and well-machined, but also a noticeable lack of protective packaging beyond individual plastic bags. The weight felt appropriate for a collection of small metal and plastic parts.
I’ve previously used OEM Glock parts kits, as well as aftermarket kits from companies like Brownells and Strike Industries. I chose the Zaffiri Precision kit hoping for similar or better quality at a competitive price point. My decision was also based on the stated compatibility with Glock 17, 34, and 17L Gen 4 slides, providing flexibility for future projects.
My first impression was cautiously optimistic. The components appeared well-made, however the reports of missing parts and failures concerned me. I hoped that the positive experiences outweighed the negative and that my build would be a success.
Real-World Testing: Putting Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit to the Test
First Use Experience
I tested the Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit by installing it into a Zaffiri Precision Glock 34 Gen 4 slide on a Polymer80 frame. The test was conducted at an outdoor shooting range under typical weather conditions. The range provided a controlled environment for assessing the kit’s functionality and reliability.
The kit performed reasonably well, initially. There were no immediate failures or malfunctions during the first 100 rounds. I did notice, however, that the extractor seemed to have a looser fit compared to OEM extractors I’ve used previously.
Extended Use & Reliability
After approximately 500 rounds, some issues began to surface. The firing pin spring cups started showing signs of deformation and cracking. This is concerning as it indicates a potential weakness in the materials used.
The kit also required more frequent cleaning and lubrication compared to a Glock OEM upper parts kit. It showed more carbon buildup and friction after sustained use. I also started to notice unusual wear marks on the underside of the extractor, suggesting improper engagement with the casing rim.
Compared to my experience with OEM Glock parts and other aftermarket kits, the Zaffiri Precision kit’s long-term reliability is questionable. While it functioned adequately for the first few hundred rounds, the accelerated wear and potential for failure are definite drawbacks. This kit has not outperformed other options in my experience.
Breaking Down the Features of Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit
Specifications
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit includes all the necessary small parts to complete a Gen 4 Glock 17, 34, or 17L slide. This kit includes: firing pin, firing pin spring, firing pin spring cups, firing pin channel liner, firing pin safety, firing pin safety spring, extractor, extractor spring, extractor depressor plunger, extractor depressor plunger spring, and slide cover plate. All components are manufactured in the USA.
These specifications are vital for proper slide function and reliability. The firing pin assembly ensures consistent primer ignition. The extractor components are responsible for reliable casing extraction and ejection. The slide cover plate secures the firing pin assembly within the slide.
Performance & Functionality
When properly installed, the Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit should allow the Glock slide to function as intended, chambering, firing, extracting, and ejecting cartridges reliably. However, as my testing revealed, the kit’s performance degrades over time, leading to potential malfunctions. The firing pin spring cups seem to be a weak point, prone to premature failure.
The kit’s primary strength is its completeness, providing all necessary small parts in one package. Its weakness lies in its long-term reliability and the potential for component failure. This kit does not exceed my expectations, considering the reported issues with parts quality and the experience of missing components.
Design & Ergonomics
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit components are designed to closely resemble the OEM Glock parts they replace. The materials appear to be standard metals and polymers used in firearm construction. The fit and finish are generally acceptable, although not as refined as OEM parts.
The kit is reasonably user-friendly to install for anyone familiar with Glock assembly/disassembly. A detailed Glock armorer’s manual can provide additional guidance for those who are not. The only learning curve is ensuring proper alignment and seating of each component.
Durability & Maintenance
The long-term durability of the Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit is questionable, based on my experience and user feedback. The firing pin spring cups appear to be the weakest link. Regular cleaning and lubrication are essential to mitigate potential malfunctions.
The kit is relatively easy to maintain, requiring only standard gun cleaning solvents and lubricants. Replacement of worn or damaged parts may be necessary more frequently compared to OEM components. This increases the overall long-term cost of ownership.
Accessories and Customization Options
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit itself doesn’t offer many customization options, as it is primarily a functional replacement kit. However, it is compatible with various aftermarket slides, barrels, and guide rods designed for Gen 4 Glocks. The kit should also work with most aftermarket extractors, firing pins, and other small parts designed as Glock upgrades.
Pros and Cons of Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit
Pros
- Complete kit: Includes all necessary small parts for completing a Glock 17/34/17L Gen 4 slide.
- Relatively affordable: Cost is competitive compared to purchasing individual OEM parts.
- Made in the USA: Appeals to those who prefer American-made components.
- Compatible with aftermarket slides and barrels.
- Easy to install for experienced Glock users.
Cons
- Questionable long-term reliability: Reports of premature wear and component failure, especially the firing pin spring cups.
- Inconsistent quality control: Some users have reported missing parts.
- May require more frequent cleaning and lubrication compared to OEM parts.
Who Should Buy Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit?
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit is best suited for experienced Glock users who enjoy building and customizing their firearms. It may also be a decent option for those on a tight budget seeking a complete upper parts kit. It can save money upfront compared to buying individual OEM components, and are prepared to accept potential reliability issues.
Those who prioritize utmost reliability and durability should probably skip this product. Law enforcement, military personnel, or those who rely on their firearm for self-defense might find the potential for component failure unacceptable. I would also advise builders to carefully inspect the kit’s components before beginning the assembly process to ensure all parts are present.
A must-have accessory would be extra firing pin spring cups; these are easily worn and you should have backups.
Conclusion on Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit
The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit offers a complete and relatively affordable solution for completing a Glock slide. However, my experience and user feedback suggest some concerns about long-term reliability and quality control.
The price may be justified for those on a tight budget. However, the potential need for more frequent parts replacement diminishes the value proposition. The Zaffiri Precision Glock 17/34/17L Gen 4 Upper Parts Kit may require users to accept a higher risk of malfunction.
Based on my experience, I cannot wholeheartedly recommend this kit. The potential for component failure and reported quality control issues make it a risky choice for those who prioritize reliability above all else. Thorough research and careful consideration of the potential drawbacks are essential before purchasing this kit.