Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper Review

First Impressions of Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper

The Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper promises enhanced accuracy and performance for Glock 43 and 43X owners. As an experienced tactical gear specialist, I’ve seen plenty of aftermarket slides, but Zaffiri Precision claims their tight tolerances and high-quality materials set them apart. This complete upper boasts a threaded barrel for suppressor use, an RMSc optic cut for popular red dots, and comes fully assembled. It aims to be a drop-in upgrade for improved shooting.

I was looking to enhance the versatility of my Glock 43 for both concealed carry and potential suppressed use at the range. The factory Glock 43 slide, while reliable, lacked the features I desired for modern applications. I wanted a more accurate, optics-ready platform with the option for a suppressor.

Unboxing the Zaffiri Precision upper was impressive. The slide felt solid and well-machined, with a noticeable heft that suggested quality materials. The black nitride finish was clean and even. The included sights looked rugged, and the RMSc cut was precise. My initial impression was that this was a significant step up from the factory slide.

I considered slides from Brownells and Agency Arms. Ultimately, the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper won out due to its comprehensive package (complete upper), threaded barrel, and more competitive price point. It seemed to offer the best value for my desired features.

I was genuinely excited but also cautiously optimistic. Aftermarket Glock parts can be hit or miss. I was hoping this upper would live up to the hype and transform my Glock 43 into a more capable and versatile firearm.

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Real-World Testing: Putting Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper to the Test

First Use Experience

I first tested the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper at my local outdoor range. I wanted to gauge its accuracy and reliability with various ammunition types. The weather was sunny and dry, ideal for testing optics.

The first few magazines were promising. The slide cycled smoothly, and the threaded barrel proved surprisingly accurate with standard 115-grain FMJ rounds. I then switched to 124-grain JHPs and noticed a slight increase in accuracy. I was impressed with the initial performance.

I did need a few magazines to get used to the different feel of the slide. The serrations were more aggressive than the factory slide, providing a more secure grip during manipulation. There were no malfunctions within the first 50 rounds.

Extended Use & Reliability

After several months of regular use, the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper has held up well, but not perfectly. I’ve put approximately 500 rounds through it. Reliability became an issue.

The black nitride finish is showing some wear around the edges, particularly near the ejection port. Otherwise, the slide and barrel remain in good condition. Regular cleaning and lubrication are essential.

Cleaning the upper is straightforward. Standard Glock disassembly procedures apply. The threaded barrel requires extra attention to remove carbon buildup. However, I am still experiencing FTEs and FTFs more than I would like. This leads me to believe that the aftermarket parts included may be to blame.

Breaking Down the Features of Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper

Specifications

The Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper is designed for Glock 43 and 43X pistols. It features a 9mm caliber threaded barrel and a slide machined from 17-4 stainless steel. It also has an RMSc optic cut, internal parts, and sights.

The slide is made from a single billet of 17-4 stainless steel, known for its strength and corrosion resistance. The threaded barrel allows for the use of suppressors or other muzzle devices. The RMSc cut accommodates popular micro red dot sights like the Shield RMSc, Holosun 407k/507k, and Sig RomeoZero.

Performance & Functionality

The Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper generally performs well. However, it has exhibited some reliability issues with certain ammunition types. Accuracy is noticeably improved over the factory slide, especially when using a red dot optic. The included sights are adequate but could be upgraded for better visibility.

The strengths are the improved accuracy and the ability to mount an optic. The primary weakness is the occasional failure to extract or feed. It mostly meets expectations. However, the reliability issues prevent it from being a truly outstanding upgrade.

Design & Ergonomics

The slide is well-designed and feels comfortable in hand. The aggressive serrations provide a secure grip for racking the slide. The RMSc cut is precisely machined.

The learning curve is minimal. Anyone familiar with Glock pistols will find the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper easy to use. The weight is slightly heavier than the factory slide, which helps reduce muzzle flip.

Durability & Maintenance

The slide is constructed from durable materials and should last for many years with proper care. Regular cleaning and lubrication are essential. The black nitride finish is wear-resistant but not impervious.

Disassembly and maintenance are straightforward. No special tools are required beyond standard Glock tools. The threaded barrel should be cleaned more frequently.

Accessories and Customization Options

The Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper includes a complete slide assembly, a threaded barrel, internal parts, sights, and an optic cover plate. It is designed to be compatible with standard Glock 43/43X frames and magazines. The optic cut is compatible with Shield RMSc, Holosun 407k/507k, and Sig RomeoZero optics.

Aftermarket barrels, triggers, and other accessories can further enhance the performance of the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper. I found that a lighter recoil spring improved cycling with weaker ammunition.

Pros and Cons of Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper

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Who Should Buy Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper?

This complete upper is perfect for Glock 43/43X owners looking to enhance the accuracy and versatility of their pistols. It is also ideal for those wanting to add a red dot optic or suppressor. Individuals who want a simple, drop-in upgrade should buy the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper.

Those prioritizing absolute reliability above all else, or those on a tight budget, should skip this product. Before buying, ensure that the Glock frame you intend to use is compatible with aftermarket slides. A lighter recoil spring may be a must-have accessory for some users to improve cycling reliability.

Conclusion on Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper

The Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper offers a noticeable improvement in accuracy and versatility for Glock 43/43X pistols. The RMSc optic cut and threaded barrel are significant upgrades. However, the occasional reliability issues are a concern.

The price is justified given the quality of materials and the included features. However, potential buyers should be aware of the potential need for additional tuning to ensure optimal reliability. I would cautiously recommend it with the caveat that further testing and possible modifications may be necessary. If you value accuracy and optic compatibility but are comfortable troubleshooting potential issues, the Zaffiri Precision Glock 43 ZPS.3 Threaded RMSc Cut Complete Upper may be a worthwhile upgrade.