First Impressions of Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded promises an upgrade to the ubiquitous Glock 19, offering enhanced accuracy, optics-ready capability, and a threaded barrel for suppressor or compensator use. Zaffiri Precision aims to deliver a premium aftermarket option with tight tolerances and improved performance. I was drawn to this upper because I wanted to breathe new life into my well-worn Gen 3 Glock 19 and add red dot sight capability without sending my existing slide off for milling.
The package arrived neatly boxed, showcasing the Zaffiri Precision branding. Lifting the complete upper out of the box, I immediately noticed the sleek lines of the slide and the distinct RMR cut. The weight felt substantial, suggesting quality materials and construction.
I had been considering a similar complete upper from Brownells and a slide milling service from JagerWerks. Ultimately, I chose the Zaffiri Precision upper for its complete drop-in nature, the inclusion of internal parts, and the promise of improved accuracy right out of the box. My initial excitement stemmed from the potential to transform my reliable Glock 19 into a more versatile and accurate platform for both range use and potential defensive scenarios.
Real-World Testing: Putting Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded to the Test
First Use Experience
My first range trip with the Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded was at an outdoor range, allowing for various distance shooting. I mounted a Holosun 507C red dot sight onto the RMR cut using the provided screws and a dab of blue Loctite. The initial shots were encouraging, with the pistol cycling reliably and the red dot making target acquisition significantly faster.
I tested the upper in slightly damp conditions, as a light rain began to fall mid-session. The slide serrations provided a secure grip even with slightly wet hands, and the pistol continued to function without issue. While the red dot sight greatly improved target acquisition speed, I did notice that the included front sight post was initially loose, corroborating feedback I had seen online.
Extended Use & Reliability
After several months and approximately 500 rounds, the Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded has proven to be generally reliable, but not without minor issues. The finish on the slide shows minimal wear, even after repeated holster draws, a testament to the durability of the coating. Cleaning is straightforward, similar to any other Glock slide, and the internal parts show no signs of premature wear.
However, the initial concerns about the barrel play within the slide persisted, leading to some inconsistency in accuracy, especially at longer distances. Compared to my experience with factory Glock uppers, the Zaffiri Precision offering, while aesthetically pleasing, hasn’t drastically improved my shooting performance.
Breaking Down the Features of Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded
Specifications
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded boasts several key specifications that define its performance and appeal. The slide is machined from a single billet of 17-4 stainless steel, known for its strength and corrosion resistance, contributing to the upper’s overall durability. The RMR cut is compatible with Trijicon RMR / SRO and Holosun 407c / 507C / 508T optics, offering a wide range of red dot sight options.
The threaded barrel allows for the attachment of suppressors or compensators, expanding the pistol’s versatility. These specifications are important because they directly impact the upper’s accuracy, reliability, and adaptability to various shooting scenarios. A robust stainless steel slide ensures long-term durability, while the RMR cut enables faster target acquisition with a red dot sight.
Performance & Functionality
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded performs adequately, but doesn’t quite reach its full potential due to the barrel play. Accuracy is acceptable for close-range engagements, but at distances beyond 25 yards, inconsistencies become more noticeable. The slide cycles reliably with various ammunition types, but the slight barrel movement impacts shot-to-shot consistency.
The threaded barrel functions as intended, allowing for easy attachment of a suppressor (tested with a SilencerCo Octane 9). A key strength is its ease of installation – truly a drop-in replacement for the factory Glock upper. The excessive barrel play is a significant weakness that detracts from the overall performance.
Design & Ergonomics
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded features an aesthetically pleasing design with clean lines and a well-executed RMR cut. The 17-4 stainless steel slide adds a noticeable heft to the pistol, which some shooters may appreciate for its perceived recoil reduction. The slide serrations provide a secure grip, even in adverse conditions.
The slide is comfortable to manipulate and the RMR cut is precisely machined. However, the aforementioned barrel play is a design flaw that should be addressed.
Durability & Maintenance
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded seems built to last, with its robust stainless steel construction and durable finish. After several months of use, there are minimal signs of wear, suggesting that the upper can withstand regular use. Cleaning is straightforward, requiring only basic gun cleaning tools and solvents.
With proper maintenance, this upper should provide years of reliable service. The durable construction is a major selling point for those seeking a long-lasting upgrade.
Accessories and Customization Options
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded comes with a black anodized cover plate for the RMR cut, allowing the pistol to be used without a red dot sight. It also includes proper mounting screws specific to the optic. The upper is compatible with most Glock 19 Gen 3 accessories, including aftermarket barrels, recoil springs, and guide rods.
The RMR cut allows for the use of a wide variety of red dot sights from different manufacturers. Blue Loctite is recommended for proper sight retention.
Pros and Cons of Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded
Pros
- Aesthetically Pleasing: The slide features a sleek design and a well-executed RMR cut, enhancing the pistol’s overall appearance.
- RMR Cut Compatibility: The RMR cut allows for easy mounting of popular red dot sights, improving target acquisition speed.
- Durable Construction: The 17-4 stainless steel slide provides excellent durability and corrosion resistance, ensuring long-term reliability.
- Threaded Barrel: The threaded barrel allows for the attachment of suppressors or compensators, increasing the pistol’s versatility.
- Drop-In Replacement: The complete upper is a drop-in replacement for the factory Glock upper, making installation quick and easy.
Cons
- Barrel Play: Excessive barrel play within the slide impacts accuracy and shot-to-shot consistency, especially at longer distances.
- Loose Front Sight: The front sight post arrived loose, requiring immediate attention and potentially indicating quality control issues.
Who Should Buy Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded?
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded is perfect for Glock enthusiasts who want to upgrade the aesthetics and functionality of their Gen 3 Glock 19. It particularly benefits those looking to add a red dot sight and/or a suppressor without permanently modifying their factory slide. Shooters who prioritize aesthetics and ease of installation over ultimate precision might find this upper appealing.
Those who demand pinpoint accuracy and consistent performance, particularly for competitive shooting or long-range applications, should skip this product. They may want to consider a higher-end slide with tighter tolerances or a custom-milled factory slide. A quality red dot sight (Holosun 507C or Trijicon RMR) is a must-have accessory to take full advantage of the RMR cut.
Conclusion on Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded
The Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded offers a compelling upgrade to the Glock 19, with its sleek design, RMR cut, and threaded barrel. However, the excessive barrel play and the initial issue with the loose front sight detract from its overall value. While the upper is aesthetically pleasing and easy to install, its performance doesn’t fully justify the price of $499.99.
I would cautiously recommend this upper to those who prioritize aesthetics and ease of installation, but with the caveat that they may need to address the barrel play issue for optimal accuracy. If you’re looking for a significant performance boost and unparalleled accuracy, consider exploring other options with tighter tolerances and proven track records. Ultimately, the Zaffiri Precision Glock 19 Gen 3 ZPS.3 RMR Cut Complete Upper Threaded is a decent upgrade, but not without its flaws.