Let’s Talk About XS Sight Systems Folding Rear Sight, CSAT Aperture
The XS Sight Systems Folding Rear Sight, CSAT Aperture is a rugged and versatile aiming solution designed primarily for AR-platform rifles. Manufactured by XS Sight Systems, this rear sight distinguishes itself through its clever CSAT (Center Axis Relock System) aperture, enabling rapid target acquisition at varying distances. This single component integrates close-quarters and medium-range aiming solutions, making it a compelling option for tactical applications.
As an experienced outdoor and tactical gear specialist, I’ve often encountered the challenge of balancing speed and precision when transitioning between close and medium-range targets. It’s a common issue during dynamic shooting scenarios. After struggling with slower transitions while running drills at the range, I needed a sight system that would allow me to quickly engage targets at multiple distances.
Upon receiving the XS Sight Systems Folding Rear Sight, CSAT Aperture, I was immediately impressed by its solid construction and compact design. The aluminum base felt robust, while the steel clamp assured me of secure attachment to my AR’s Picatinny rail. This sight seemed built to withstand harsh conditions, with no loose parts or questionable assembly.
While there are numerous folding rear sights on the market, including offerings from Magpul and Troy Industries, the XS Sight Systems CSAT aperture set it apart. The Magpul MBUS Pro is known for its low profile, but lacks the immediate versatility of the CSAT. Troy sights are undeniably durable, yet arguably more expensive without offering the specific CSAT functionality.
My initial impression was one of cautious optimism. The design was certainly innovative, promising to streamline my aiming process. I was eager to see if it would live up to its potential at the range.
Real-World Testing: Putting XS Sight Systems Folding Rear Sight, CSAT Aperture to the Test
First Use Experience
I first tested the XS Sight Systems Folding Rear Sight, CSAT Aperture at an outdoor shooting range on a partly cloudy day. The range offered a variety of target distances, allowing me to effectively evaluate the CSAT aperture’s capabilities. I specifically focused on transitions between targets at 7, 25, 50, and 100 yards.
The sight performed admirably, even in the slightly challenging lighting conditions. The CSAT aperture’s notch provided a clear sight picture for the 7-yard zero, while the smaller aperture proved accurate at 100 yards. I experienced a much faster engagement time when transitioning between close-quarters and long-range targets.
The sight required minimal adjustment to get used to; the transitions between apertures were intuitive and quick. One initial surprise was how distinct the sight picture became as soon as I flipped between apertures.
Extended Use & Reliability
After several months of consistent use, the XS Sight Systems Folding Rear Sight, CSAT Aperture has proven to be a reliable and durable addition to my AR platform. I estimate approximately 1,000 rounds fired with the sight in place. I have continued to test the sight throughout various drills at both indoor and outdoor ranges.
There are minimal signs of wear and tear on the sight, even after exposure to moderate rain and dirt. The hard coat anodized finish has held up exceptionally well. The sight is easily maintained with a simple wipe-down using a lightly oiled cloth after each range visit.
The sight outperforms standard A2-style iron sights in terms of speed and versatility, due to its CSAT aperture and ease of adjustment. Previously, I’d have to carry both CQB and long-range sights; the XS Sight Systems Folding Rear Sight, CSAT Aperture allowed me to consolidate my loadout.
Breaking Down the Features of XS Sight Systems Folding Rear Sight, CSAT Aperture
Specifications
The XS Sight Systems Folding Rear Sight, CSAT Aperture boasts several key specifications that directly contribute to its performance. The base is constructed from durable aluminum with a hard coat anodized finish, ensuring resistance to corrosion and wear. The clamp, aperture, and associated hardware are made of robust steel providing additional durability at critical stress points.
The sight mounts to any standard 1913 Picatinny rail, making it compatible with a wide range of AR-platform rifles. Its folding design allows it to be stowed out of the way when not in use or when utilizing an optic. The unique CSAT aperture features a notch for a 7-yard zero, a smaller aperture for a 100-yard zero, and a larger battle aperture for general use, providing versatility in various scenarios.
The inclusion of an AR tool simplifies installation and adjustments. The addition of tritium illumination provides a visible sight picture even in low-light conditions. The choice of materials directly impacts the sight’s durability and resistance to the elements; the design allows for a versatile and adaptable optic to suit different shooting environments.
Performance & Functionality
The XS Sight Systems Folding Rear Sight, CSAT Aperture performs exceptionally well in its intended role: providing rapid and accurate target acquisition at varying distances. The CSAT aperture allows for quick transitions between close-quarters and longer-range engagements. It is simple to switch between each sight picture.
Its strengths lie in its versatility and ease of use. The sight locks firmly into position, maintaining zero even after repeated folding and unfolding. A possible weakness is the reliance on ambient light for optimal sight picture, although this is mitigated by the tritium insert.
The sight meets and often exceeds expectations, delivering on its promise of speed and accuracy. The sight is a solid upgrade to any AR-platform, and provides peace of mind for both professional and civilian shooters.
Design & Ergonomics
The build quality of the XS Sight Systems Folding Rear Sight, CSAT Aperture is impressive. The materials used feel solid and well-machined. The sight is lightweight, yet feels durable in hand.
The design is intuitive and user-friendly. There is virtually no learning curve, making it accessible to both experienced and novice shooters. It’s easy to flip between apertures and the sight locks into place securely.
Durability & Maintenance
The XS Sight Systems Folding Rear Sight, CSAT Aperture is built to last. Its durable materials and robust construction ensure long-term reliability. There are no signs of wear after thousands of rounds fired, and the sight appears ready to withstand even more.
Maintenance is simple and straightforward. A quick wipe-down with a clean cloth after each use is generally sufficient. Periodic lubrication of the folding mechanism may be necessary to ensure smooth operation.
Accessories and Customization Options
The XS Sight Systems Folding Rear Sight, CSAT Aperture comes with a small AR tool for basic adjustments. While the sight itself does not offer extensive customization options, it is designed to work seamlessly with a variety of front sights. There are no accessories available to enhance the base sight itself.
The sight is compatible with most aftermarket AR-15 front sights. This compatibility allows users to fine-tune their aiming system to their specific preferences. Be sure to utilize a front sight that is compatible with the XS Sight Systems Folding Rear Sight, CSAT Aperture for proper alignment.
Pros and Cons of XS Sight Systems Folding Rear Sight, CSAT Aperture
Pros
- Rapid target acquisition at varying distances with the CSAT aperture.
- Durable construction with aluminum base and steel clamp.
- Easy to install and use, minimal learning curve.
- Folding design allows for convenient storage and use with optics.
- Includes an AR tool for basic adjustments.
Cons
- Sight picture depends on light; may not be optimal in very low light without supplemental illumination.
- Relatively more expensive than basic polymer flip-up sights.
Who Should Buy XS Sight Systems Folding Rear Sight, CSAT Aperture?
The XS Sight Systems Folding Rear Sight, CSAT Aperture is perfect for: tactical shooters, law enforcement personnel, and anyone who values versatility and speed in their AR-platform rifle. It is also well-suited for home defense users who want a rapid transition from close-quarters to intermediate-range engagements. Its simple, robust design also makes it a strong option for survivalists.
This product may not be ideal for precision target shooters who require extremely fine adjustments or prefer a dedicated long-range optic. Those on a very tight budget may find cheaper, albeit less versatile, alternatives. Anyone who expects to operate primarily at extended ranges, or in consistently low light conditions should consider a different solution.
A quality front sight is a must-have accessory. Also consider a weapon-mounted light for low-light conditions.
Conclusion on XS Sight Systems Folding Rear Sight, CSAT Aperture
The XS Sight Systems Folding Rear Sight, CSAT Aperture is a well-designed and highly functional aiming solution for AR-platform rifles. Its unique CSAT aperture offers exceptional versatility, allowing for rapid target acquisition at varying distances. The sight is durable, easy to use, and maintains zero reliably.
The price is justified by its performance and versatility. A shooter would typically have to acquire two separate sights to achieve the same results. It’s a worthwhile investment for anyone who prioritizes speed and adaptability in their shooting.
I would highly recommend the XS Sight Systems Folding Rear Sight, CSAT Aperture to anyone looking to upgrade their AR’s sighting system. Its robust design and versatile functionality make it a valuable asset in any tactical or defensive scenario. Upgrade your AR-15 today and experience the speed and precision of the XS Sight Systems Folding Rear Sight, CSAT Aperture!