First Impressions of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight
The Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight is a purpose-built upper designed for precision and accuracy, especially tailored for National Match shooting. This upper receiver assembly comes from Rock River Arms, a company known for producing reliable and accurate AR-15 components.
For years, I’ve been chasing tighter groups with my AR-15, and the standard upper receiver just wasn’t cutting it anymore. My groups were decent, but I yearned for consistent sub-MOA performance, something I could rely on in various conditions. I wanted a pre-assembled upper known for quality components and a pedigree in precision shooting.
Upon receiving the Rock River Arms A2 National Match Upper Receiver Assembly, the first thing that struck me was the solid, no-nonsense construction. The anodized finish was even and clean, and the A2-style upper receiver exuded a classic, functional aesthetic. The weight felt appropriate, suggesting quality materials without being unwieldy.
I considered building my own match-grade upper, piecing together components from various manufacturers. However, the time and specialized tools required, coupled with the potential for compatibility issues, steered me towards a pre-assembled unit. Another option was a complete rifle from a high-end manufacturer, but the cost was prohibitive for my budget. My goal was enhanced accuracy, and this RRA upper promised that without breaking the bank. I was excited about the potential this upper receiver assembly offered and eager to see if it lived up to its reputation.
Real-World Testing: Putting Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight to the Test
First Use Experience
My initial testing took place at my local outdoor shooting range, a place I frequent weekly. The weather was typical for a spring afternoon: a slight breeze and temperatures in the mid-60s. I mounted the Rock River Arms A2 National Match Upper Receiver Assembly onto my existing AR-15 lower, a process that was quick and straightforward.
I primarily used Federal Gold Medal Match .223 ammunition. The initial shots were promising, with the tight groups immediately noticeable compared to my previous upper. The A2 sight adjustments were precise and responsive, making it easy to zero the rifle at 100 yards.
Extended Use & Reliability
After several months of consistent use, the Rock River Arms A2 National Match Upper Receiver Assembly continues to deliver exceptional performance. I’ve put several hundred rounds through it, and the accuracy has remained consistent, with no noticeable degradation in performance. The anodized finish has held up well, showing minimal signs of wear even after being exposed to varying weather conditions.
Cleaning is straightforward; the standard AR-15 maintenance procedures apply. I’ve found that regular cleaning and lubrication keep the action smooth and reliable. Compared to my previous experiences with other AR uppers, this Rock River Arms offering is a significant step up in terms of accuracy and overall quality. It has consistently outperformed my expectations and has noticeably improved my shooting skills.
Breaking Down the Features of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight
Specifications
The Rock River Arms A2 National Match Upper Receiver Assembly is chambered in 5.56mm NATO, also compatible with .223 Remington ammunition. The upper receiver is crafted from 7075 T6 aluminum, known for its strength and lightweight properties. The finish is a durable anodized coating in black, providing excellent corrosion resistance.
This assembly features an A2-style upper receiver, offering a classic and familiar platform for many shooters. It also includes a National Match 1/4×1/4, .040 Hooded Aperture Rear Sight, designed for precise adjustments and enhanced accuracy. The inclusion of this finely adjustable rear sight is crucial for achieving match-grade precision. This specific sight allows for very fine adjustments, which is necessary for National Match competitions.
Performance & Functionality
The Rock River Arms A2 National Match Upper Receiver Assembly excels in its primary function: delivering exceptional accuracy. With quality match-grade ammunition, I’ve consistently achieved sub-MOA groups at 100 yards. The A2 sight system allows for precise adjustments, making it easy to dial in your zero and compensate for varying shooting conditions.
The action is smooth and reliable, with consistent cycling and ejection. The only potential weakness is the fixed A2-style carry handle, which some may find less versatile than a flattop receiver for mounting optics. However, for those who prefer iron sights or appreciate the classic AR-15 design, this is not a significant drawback. Overall, this upper receiver assembly significantly exceeds my expectations in terms of performance and functionality.
Design & Ergonomics
The Rock River Arms A2 National Match Upper Receiver Assembly features a classic AR-15 design, familiar and comfortable to most shooters. The A2-style upper receiver provides a solid and stable platform, while the anodized finish offers a smooth and durable surface. The weight is well-balanced, contributing to improved handling and control.
The A2 sight system is intuitive and easy to use, though it may require some familiarity for those accustomed to modern optics. The overall build quality is excellent, with tight tolerances and attention to detail evident throughout. There is a slight learning curve for those transitioning from other sighting systems, but the benefits in accuracy are well worth the effort.
Durability & Maintenance
The Rock River Arms A2 National Match Upper Receiver Assembly is built to last. The 7075 T6 aluminum construction and durable anodized finish ensure excellent resistance to wear and corrosion. With proper care and maintenance, this upper receiver assembly should provide years of reliable service.
Maintenance is straightforward, requiring only basic AR-15 cleaning tools and lubricants. Regular cleaning and lubrication will keep the action smooth and prevent any potential issues. The robust construction suggests it can withstand rigorous use.
Accessories and Customization Options
The Rock River Arms A2 National Match Upper Receiver Assembly is primarily designed for use with iron sights, specifically the included National Match rear sight. While the fixed A2 carry handle limits direct optic mounting, it is possible to add a Picatinny rail adapter to the carry handle for attaching red dot sights or other accessories.
The upper receiver assembly is compatible with any standard AR-15 lower receiver. The .223/5.56 chambering makes it compatible with a wide variety of ammunition and magazines. The design leans towards traditional functionality, and customization options are somewhat limited due to the A2 configuration.
Pros and Cons of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight
Pros
- Exceptional Accuracy: Consistently delivers sub-MOA groups with match-grade ammunition.
- High-Quality Components: Built with durable 7075 T6 aluminum and a robust anodized finish.
- Precise A2 Sight System: The National Match rear sight allows for fine-tuned adjustments and enhanced accuracy.
- Reliable Performance: Smooth and consistent cycling with minimal maintenance.
- Classic AR-15 Design: Familiar and comfortable to handle for experienced shooters.
Cons
- Fixed A2 Carry Handle: Limits direct optic mounting options.
- Limited Customization: A2 configuration offers fewer customization possibilities compared to flattop receivers.
Who Should Buy Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight?
The Rock River Arms A2 National Match Upper Receiver Assembly is perfect for competitive shooters seeking enhanced accuracy with iron sights. It is also well-suited for those who appreciate the classic AR-15 design and want a reliable, high-quality upper receiver assembly for precision shooting. Target shooters, long-range enthusiasts, and anyone prioritizing accuracy over extensive customization will find this upper receiver assembly an excellent choice.
Those who primarily use optics or require extensive customization options should skip this product. Shooters who prefer flattop uppers with readily available Picatinny rails for optics mounting may find the A2 configuration limiting. A must-have modification would be a quality sling for improved stability and handling.
Conclusion on Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4×1/4, .040 Hooded Aperture Rear Sight
The Rock River Arms A2 National Match Upper Receiver Assembly is a superb choice for shooters prioritizing accuracy and reliability. It delivers exceptional performance with its high-quality components and precise A2 sight system. The price is justified by the enhanced accuracy and durability, making it a worthwhile investment for serious shooters.
I would highly recommend this upper receiver assembly to anyone seeking to improve their shooting skills and achieve consistent sub-MOA accuracy with iron sights. It’s a well-built, accurate, and reliable product that lives up to its National Match designation. If you’re ready to take your shooting to the next level, give the Rock River Arms A2 National Match Upper Receiver Assembly a try. You won’t be disappointed.