XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear Review

The XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear Made a Bold First Impression

Back-up iron sights (BUIS) are a critical component for any serious AR-15 platform. When optics fail, or conditions demand a faster, more intuitive sighting system, BUIS are the lifeline. The XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear aims to provide that lifeline with a unique combination of tritium illumination and a streamlined design.

I’ve spent years relying on various BUIS systems, often finding them bulky or slow to deploy. I was searching for a low-profile, rapidly deployable offset solution that wouldn’t add unnecessary weight or complexity to my rifle. The XS Sight offering, with its tritium front sight for low-light visibility and ambidextrous design, immediately caught my eye.

Upon unboxing the XS Sight XTI2 DXW, I was impressed by the clean machining and robust feel of the aluminum bases and steel sights. The tritium front sight glowed distinctly even in moderate lighting, promising excellent visibility in dim conditions. The overall weight felt negligible, a welcome change from some of the heavier steel BUIS sets I’ve used.

Compared to Magpul MBUS Pro or Troy Industries folding sights, the XS Sight XTI2 DXW offers a different approach: fixed, offset, and tritium-enhanced. I chose the XS Sight because I prioritized instant accessibility and low-light performance over the folding capability of other options. I was excited to see how the offset design and tritium illumination would perform in real-world scenarios.

Real-World Testing: Putting XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear to the Test

First Use Experience

My first experience with the XS Sight XTI2 DXW was at an outdoor range during a low-light training session. I mounted the sights on my primary AR-15, which is chambered in 5.56 NATO. The transition from my primary optic (a red dot) to the offset irons was surprisingly intuitive and fast.

The tritium front sight made target acquisition in the fading light significantly easier. I also tested the sights in a simulated “house clearing” drill, transitioning from the red dot to the XS Sights quickly and smoothly. There were no immediate issues, and the sights felt solid and well-secured.

Extended Use & Reliability

After several months of regular use, the XS Sight XTI2 DXW has proven to be remarkably durable and reliable. The sights have endured numerous range trips, including exposure to rain, mud, and extreme temperature fluctuations. There has been no noticeable wear or tear on the steel sights or aluminum bases.

Cleaning the sights is straightforward. A quick wipe-down with a CLP-soaked cloth is all that’s needed to remove carbon buildup and maintain optimal performance. Compared to my previous experiences with other BUIS, the XS Sight system requires minimal maintenance while consistently delivering dependable performance.

Breaking Down the Features of XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear

Specifications

• Tritium Powered Front Sight: Features a beta emitting lamp providing continuous low-light illumination for rapid sight alignment. This is crucial for scenarios where ambient light is limited.
• V-Notch Rear: The low-profile V-notch rear sight offers increased visibility of the target area downrange. This design allows for faster target acquisition and improved situational awareness.
• Dot-the-“i” Sight Picture: Provides a straight-line sight picture with differentiated front and rear sights. This simplifies sight alignment, especially under stress.
• Choice of Rear Sight White Stripe or Tritium Bar: Aids in rear sight identification, facilitating proper sight alignment based on user preference. The model reviewed features the white stripe option.
• Rear Sight Windage Adjustment: Allows for easy windage adjustments via a driftable rear sight. This provides necessary fine-tuning for accurate zeroing.
• Functional Lightweight Design: Weighs only 2.02oz (standard dot) or 2.04oz (big dot), adding minimal weight to the rifle. This is important for maintaining weapon balance and maneuverability.
• 6061 T6 Aluminum Bases: Utilizes lightweight yet durable 6061 T6 aluminum for the sight bases. This material choice keeps the rifle weight low without sacrificing strength.
• Fully Ambidextrous: Can be rotated for left-handed shooters. This ensures compatibility for all users, regardless of their dominant hand.
• CNC Steel Iron Sights: Constructed from extremely durable CNC machined steel. This provides robust performance under demanding conditions.
• Life Time Warranty: Backed by XS Sight’s no questions asked lifetime warranty. This guarantees peace of mind and demonstrates the manufacturer’s confidence in their product.
• Easy Bolt on Installation: Designed for top rail installation, compatible with all optic-ready AR-15 rifles. Installation is simple and requires no specialized tools.

Performance & Functionality

The XS Sight XTI2 DXW excels in its primary function: providing a reliable and rapidly deployable back-up sighting system. The offset design allows for seamless transitions between a primary optic and the iron sights. The tritium front sight ensures excellent visibility in low-light environments.

The V-notch rear sight, while effective, requires a slightly different aiming technique than traditional aperture sights. Overall, the XS Sight XTI2 DXW meets and exceeds expectations for a high-quality BUIS system.

Design & Ergonomics

The build quality of the XS Sight XTI2 DXW is exceptional. The materials used are top-notch, and the overall design is both functional and aesthetically pleasing. The sights are lightweight and comfortable to use, adding minimal bulk to the rifle.

The low-profile design ensures that the sights don’t interfere with the primary optic. There is a slight learning curve associated with using an offset sighting system, but the intuitive design of the XS Sight makes the transition relatively easy.

Durability & Maintenance

The robust construction of the XS Sight XTI2 DXW suggests it will last for years, even under heavy use. The steel sights and aluminum bases are resistant to corrosion and wear. As mentioned earlier, maintenance is minimal.

Accessories and Customization Options

The XS Sight XTI2 DXW comes as a complete set with both front and rear sights. While there are no included accessories, the sights are compatible with any AR-15 rifle with a Picatinny rail. There are no specific customization options available for the XTI2 DXW beyond the choice between a white stripe or tritium bar rear sight.

Pros and Cons of XS Sight XTI2 DXW 45 Degree Offset BUIS Tritium Front / Non-Tritium Rear