XS Sights Colt Viper Standard Dot – Compatibility & Buyer Information
The XS Sights Standard Dot white tritium front sight (CM-RV001S-4) is designed for Colt Viper revolvers. It combines a highly reflective white front aiming dot with self-illuminating tritium in a durable steel sight body.
Is This Sight Compatible With the Colt Viper?
Yes. XS Sights specifically lists the Colt Viper as a supported revolver for this model.
The Colt Viper configuration uses a 0.150-inch front sight height and a 0.140-inch Standard Dot front sight. These dimensions are manufacturer-specified for the Viper application.
Confirm that your particular revolver uses the corresponding factory-style removable front-sight arrangement before purchasing.
Will This Fit a Colt Cobra or King Cobra?
Do not assume direct interchangeability. XS Sights lists a 0.175-inch front sight height for the Colt Cobra and King Cobra, compared with 0.150 inches for the Colt Viper.
XS Sights offers model-specific configurations. Select the front sight identified for your particular Colt revolver rather than relying on the fact that these firearms use similar front-sight designs.
What Is the Difference Between a Standard Dot and Big Dot?
XS Sights offers multiple front-sight patterns with different aiming-dot dimensions and visual presentations.
The Standard Dot used in this Colt Viper model has a 0.140-inch dot. It provides a prominent sighting reference while maintaining a smaller visual profile than the company's larger Big Dot designs.
Buyers should compare the intended application and their personal sight-picture preference rather than assuming that a larger aiming dot is automatically more accurate.
How Does Tritium Illumination Work?
Tritium is a radioactive isotope of hydrogen used in sealed self-luminous sight elements. Its light is produced continuously without an electrical power source.
Unlike photoluminescent materials, tritium does not need exposure to ambient light to produce its low-light illumination.
Tritium gradually dims over its service life. XS Sights provides a twelve-year tritium illumination warranty under its published terms.
Does the White Dot Glow Like the Green or Orange Versions?
The white configuration uses a reflective white front-dot surface paired with a tritium illumination element.
XS Sights' green and orange versions also use photoluminescent colored material that absorbs ambient light and subsequently glows in reduced lighting.
The white version emphasizes conventional reflective visibility in daylight, while the tritium element provides the battery-free low-light reference.
White vs. Green vs. Orange – Which Should I Choose?
| Front Dot | Daytime Appearance | Low-Light Illumination |
|---|
| White | Reflective White | Tritium |
| Green | Photoluminescent Green | Tritium and Charged Glow Dot |
| Orange | Photoluminescent Orange | Tritium and Charged Glow Dot |
| Brass | Reflective Brass | No Tritium |
White offers a traditional high-contrast sighting reference. Green and orange provide more conspicuous colored front dots, while brass appeals to shooters who prefer a classic reflective metal bead.
All selections should be matched to the correct firearm model and front-sight height.
Is This a Complete Sight Set?
No. Manufacturer part number CM-RV001S-4 contains a front sight and associated installation accessories. A replacement rear sight is not included.
The sight is intended to be used with the Colt Viper's appropriate rear-sight configuration.
What Installation Hardware Is Included?
XS Sights lists the front sight, blue threadlocker, hex wrench for the front sight set screw, and written instructions as the contents of the kit.
Although XS Sights describes this product family as suitable for do-it-yourself installation, fitting, retention, and alignment must be correct. Consult a qualified gunsmith if the existing sight cannot be removed normally or if the installation does not match the manufacturer's instructions.
Will Replacing the Front Sight Change Point of Impact?
Changing front-sight height or geometry can change the relationship between the firearm's sights and its actual point of impact.
The XS Colt Viper sight is designed around a manufacturer-specified height, but actual point of impact depends on the individual revolver, ammunition, sight alignment, and shooting conditions.
Confirm the revolver's point of impact under appropriate range conditions after sight replacement.
Is the Sight Made in the United States?
Yes. XS Sights manufactures its products in Fort Worth, Texas. The company states that its sights are CNC-machined from solid steel bar stock by its in-house manufacturing operation.
What Does the 12-Year Tritium Warranty Cover?
XS Sights warrants the tritium illumination for twelve years to the original purchaser, subject to the company's warranty conditions.
The company notes that tritium naturally dims during its useful life. The warranty does not cover every form of wear, damage, improper installation, or cosmetic deterioration.
Proof of purchase may be required for warranty service. Visit the manufacturer for the complete terms.
California Proposition 65 Warning
WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Manufacturer Information
For current product specifications, installation instructions, and warranty information, visit XS Sights Standard Dot Tritium Revolver Night Sights – Colt.