MPN: RV-0001N-4


  • Large front sight improves speed of sight acquisition and maintains visibility under stress and movement
  • Trijicon Tritium vials
  • Convex dot maximized visible surface area
  • PVD dot won't chip or fade
  • White dot reflects light for the best visibility in low light
  • Made in the U.S.A.


  • Material: Steel
  • Finish: Black


  • S&W J Frame and Ruger SP101 (Fixed Rear)


  • 1x XS Tritium Night Sight for S&W J Frame & Ruger SP101
  • 1x Red Thread Locker


If you need an S&W J Frame night sight or a Ruger SP101 night sight, it’s hard to do better than an XS Sight Systems Standard Dot Tritium Front night sight designed for these models. The single piece sight body is more compact than many competitors’ night sights. That’s thanks to the innovative use of encapsulated tritium, which self-illuminates with just the right amount of glow

Unlike competitor’s battery powered sights, XS Tritium night sights have the perfect level of luminescence so target acquisition is never a challenge because of too much sight light. You’ll never have issues because your sights are the wrong brightness and obscure your vision. Even under the most challenging lighting conditions, even in situations where the light is shifting, you won’t have trouble acquiring a target and keeping visual contact with your surroundings.

When you pull up onto your target, simply center your tritium dot inside the ring and center your target. You’ll never shoot another S&W J Frame night sight or Ruger SP101 night sight that offers the same dependable, intuitive function you get from an XS Sight Systems Tritium Night Sight. The S&W J Frame/ Ruger SP101 model is designed as to replace the fixed sights on these guns but will require drilling to allow the sight to be pinned in place.

If you need a quality sight system for your personal defense sidearm or service piece, XS Systems has you covered. This is one partner that’ll have your back in any situation.

**Installation damage caused during installation is NOT covered. Installation is recommended done by a certified gunsmith. (Drilling required for installation of this front sight)

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