Precision Reflex Upper Assembly Vise Block Review

Let’s Talk About Precision Reflex Upper Assembly Vise Block

The Precision Reflex Upper Assembly Vise Block is a meticulously crafted tool designed to simplify the assembly, maintenance, and customization of AR-15 and AR-10 upper receivers. Manufactured by Precision Reflex, this block provides a stable and secure platform for working on your firearms. Its robust construction and thoughtful design aim to eliminate the frustration often associated with upper receiver work.

Having spent over a decade tinkering with AR platforms, from basic cleaning to full-blown custom builds, I’ve struggled with unstable work surfaces. I needed a reliable vise block that wouldn’t damage my uppers and could handle both AR-15 and AR-10 platforms. I unboxed the Precision Reflex Upper Assembly Vise Block with a sense of anticipation. The block felt solid, the black anodized aluminum promising durability, and the steel retention pins looked robust.

While I’ve used other vise blocks like the Magpul BEV Block and a generic polymer clamshell design, the Precision Reflex Upper Assembly Vise Block stood out due to its dual compatibility and all-aluminum construction. I chose it primarily for its ability to handle both AR-15 and AR-10 uppers in a single unit. My initial excitement was tempered with a healthy dose of skepticism. Could this block truly live up to the promise of stability and versatility, or would it be another addition to my collection of “almost-but-not-quite” tools?

Real-World Testing: Putting Precision Reflex Upper Assembly Vise Block to the Test

First Use Experience

My first test involved assembling an AR-10 upper, a task that typically requires a high degree of precision. I mounted the Precision Reflex Upper Assembly Vise Block in my bench vise and secured the upper receiver using the provided pins. The block provided a rock-solid base, even when torquing the barrel nut to the manufacturer’s specified 65 ft-lbs.

The Precision Reflex Upper Assembly Vise Block was tested in my cluttered garage, which can range from cold and damp in the winter to hot and dusty in the summer. I assembled an AR-15 upper in humid conditions with no issues, and the block held up perfectly fine. The tool was easy to use right out of the box and the two receiver pins made it extremely simple to secure the upper receiver. I had no issues during my initial uses.

Extended Use & Reliability

After several months of consistent use, the Precision Reflex Upper Assembly Vise Block has proven to be a reliable and indispensable tool in my workshop. There are no signs of cracking or deformation, and the anodized finish is holding up well, save for a few minor scratches. Maintenance is simple; a quick wipe with a clean cloth removes any accumulated oil or debris.

The Precision Reflex Upper Assembly Vise Block outperforms other blocks I’ve used, particularly in terms of stability and the ability to handle both AR platforms. Unlike polymer blocks that can flex under pressure, the aluminum construction of the Precision Reflex block provides a rigid platform for critical tasks.

Breaking Down the Features of Precision Reflex Upper Assembly Vise Block

Specifications

• Material: Constructed from T6 6069 hard coat black anodized aluminum for maximum durability and corrosion resistance. The choice of aluminum provides a lightweight yet strong platform for supporting the upper receiver during assembly or maintenance.
• Compatibility: Designed to work with both AR-15 and AR-10 upper receivers. This dual compatibility significantly increases its value, eliminating the need for separate blocks for each platform.
• Retention: Uses two steel receiver pins to securely hold the upper receiver in place. These pins ensure a snug and stable fit, preventing any unwanted movement during critical operations.
• Finish: Features a hard coat anodized finish for enhanced scratch and wear resistance. The anodized finish also provides a non-reflective surface, beneficial in tactical environments.
• Color: Black, providing a professional and non-reflective appearance. The black finish blends seamlessly with most workshop environments and tactical gear.

Performance & Functionality

The Precision Reflex Upper Assembly Vise Block performs exceptionally well in its primary function: securely holding an upper receiver for assembly and maintenance. It excels at providing a stable platform for tasks such as barrel nut installation, gas block mounting, and sight adjustments. The block is incredibly reliable, and the upper receiver sits rock solid within the block.

The main strength is its dual AR-15 and AR-10 compatibility, while a minor weakness is that the anodized finish is prone to scratching. Despite the scratching, the product meets my expectations, providing a reliable and versatile tool for working on AR-platform rifles.

Design & Ergonomics

The Precision Reflex Upper Assembly Vise Block boasts a straightforward and functional design. Its aluminum construction strikes a balance between weight and durability. The block is easy to handle and positions the upper receiver at a comfortable working height when mounted in a vise.

The Precision Reflex Upper Assembly Vise Block is very user-friendly and there is almost no learning curve. The only requirement is familiarity with AR platforms.

Durability & Maintenance

The Precision Reflex Upper Assembly Vise Block is built to last. Its hard coat anodized aluminum construction will withstand years of regular use. Maintaining this tool is a breeze, requiring only a quick wipe down with a cloth to remove any dirt or grime.

Repairing the Precision Reflex Upper Assembly Vise Block is highly unlikely to be needed, given its robust design. The only component that could potentially require replacement is the steel retention pins, but these are readily available if needed.

Accessories and Customization Options

The Precision Reflex Upper Assembly Vise Block comes with the two steel retention pins necessary for securing the upper receiver. There are no other included accessories. The block is designed to be used with a standard bench vise, which is not included.

While the Precision Reflex Upper Assembly Vise Block itself isn’t customizable, it’s compatible with a wide range of AR-15 and AR-10 upper receivers, allowing for various builds and configurations. The block is also compatible with most standard bench vises, providing flexibility in mounting options.

Pros and Cons of Precision Reflex Upper Assembly Vise Block

Who Should Buy Precision Reflex Upper Assembly Vise Block?

This Precision Reflex Upper Assembly Vise Block is perfect for gunsmiths, serious hobbyists, and anyone who frequently builds or modifies AR-15 and AR-10 rifles. The dual compatibility makes it an especially valuable tool for those who work with both platforms. It is also a great investment for those who want a very stable and secure platform for their upper receivers.

Individuals who only occasionally clean their AR-15 or AR-10 rifles might find this product to be overkill. If you are working with a DPMS GII rifle, you should skip this product due to its incompatibility. You might also want to consider alternative solutions if you are on a very tight budget.

A quality bench vise is a must-have accessory for the Precision Reflex Upper Assembly Vise Block. While not strictly necessary, a torque wrench is highly recommended for proper barrel nut installation.

Conclusion on Precision Reflex Upper Assembly Vise Block

The Precision Reflex Upper Assembly Vise Block is a well-designed and robust tool that simplifies the process of assembling, maintaining, and customizing AR-15 and AR-10 upper receivers. The dual compatibility, durable construction, and ease of use make it a worthwhile investment for anyone serious about working on AR-platform rifles. While the anodized finish is prone to scratching, this is a minor cosmetic issue that doesn’t affect the tool’s performance.

At $57.99, the price is justified given the quality of construction and versatility it offers. I would highly recommend the Precision Reflex Upper Assembly Vise Block to anyone looking for a reliable and secure platform for working on their AR uppers. It’s a tool that will undoubtedly make your next build or maintenance project smoother and more enjoyable. Upgrade your workbench and take your AR builds to the next level!