XS Sights
XS Sights is an American manufacturer of tritium night sights, express sights, and fiber optic front sights based in Fort Worth, Texas, best known for the XS Express Sight system — a large-diameter tritium front sight paired with a shallow V-rear that enables fast target acquisition in low light for defensive pistols, lever-action rifles, and shotguns. XS Sights are a standard upgrade recommendation for defensive firearm owners who want reliable low-light sight performance without the complexity of electronic optics.
Read our full XS Sights Buying Guide ↓
What Are XS Express Sights and How Do They Work?
The XS Express Sight system uses a large-diameter tritium-lit front sight combined with a shallow V-notch rear that keeps both the target and front sight visible simultaneously — a concept borrowed from dangerous game hunting rifles where speed of acquisition matters more than fine precision. In a defensive shooting context, the large front dot draws the eye naturally and allows the shooter to get a usable sight picture in a fraction of the time required by traditional three-dot sights. The tradeoff is reduced precision at distance — XS Express Sights are optimized for 0–25 yard defensive use, not for precise accuracy at 50 yards. For the application they’re designed for, they are one of the fastest iron sight systems available.
XS Sights for Handguns: Glock, S&W, SIG, and More
XS Sights produces direct-fit tritium night sight sets for the most popular defensive handgun platforms including Glock, Smith & Wesson M&P, Sig Sauer P-series, Springfield Armory, and many others. Their handgun sights are available in standard three-dot tritium configurations for shooters who prefer a conventional sight picture, and in the Express configuration for those who prioritize acquisition speed. XS also produces suppressor-height night sights for handguns running suppressors or red dot optics that require a taller front sight to co-witness properly.
XS Sights for Lever-Action Rifles and Shotguns
XS Sights has a strong following among lever-action rifle owners, producing direct-replacement front and rear sight sets for Marlin, Henry, and Winchester lever-action models. The large tritium front bead on an XS-equipped lever gun is a meaningful upgrade for hunters who use lever-action rifles in low-light conditions — dawn and dusk deer hunting, hog hunting at night, or any low-light field situation where factory lever-action sights become difficult to see. XS also produces front sight beads and ghost ring rear sights for shotguns used in home defense and hunting applications.
XS Sights vs. Night Fision vs. Trijicon: Choosing Night Sights
The three most prominent tritium night sight brands are XS Sights, Night Fision, and Trijicon. Trijicon HD and HD XR sights are the premium option, with large front dots and high-contrast outlines suited for both precision and fast acquisition. Night Fision produces a broad range of platform-specific sights with a focus on consistent tritium brightness and tight fit tolerances. XS Sights differentiates on the Express system — if acquisition speed in close-range defensive scenarios is the priority, XS Express is genuinely faster than conventional three-dot systems. If the shooter wants a sight that performs at both close range and moderate distance, Trijicon HD or Night Fision are stronger choices. XS is specifically the right answer for defensive-only handguns and lever-action rifles used at short range.
Frequently Asked Questions: XS Sights
What is the XS Express Sight system?
The XS Express system uses a large-diameter tritium front sight with a shallow V-notch rear, designed for maximum acquisition speed at defensive ranges (0–25 yards). It trades fine precision for faster target acquisition, particularly in low-light conditions.
Do XS Sights fit my Glock?
XS Sights produces direct-fit sets for most Glock models. Check the specific XS part number for your Glock generation and model before ordering — fit varies between generations.
Are XS Sights good for concealed carry?
Yes. The XS Express system is specifically designed for the close-range, fast-acquisition demands of defensive shooting. They are a popular upgrade for concealed carry handguns among instructors and defensive shooting trainers.
Do XS Sights work on lever-action rifles?
Yes — XS Sights produces one of the best lever-action sight upgrade lines available, covering Marlin, Henry, and Winchester models with tritium front beads and ghost ring rears.
Browse XS Sights
Shop all XS Sights products at Impact Guns — we ship nationwide.
See Also: Night Sights • Night Fision • Trijicon • Lever-Action Rifles