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DXT2 Big Dot Night Sights - Sig Sauer

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Don't Struggle to See Your Front Sight!

Our DXT2 Night Sights for Sig Sauer pistols are tritium night sights specifically crafted to enhance the performance of your EDC pistol. These defensive sights are meticulously designed with features to ensure optimal visibility in low-light conditions. The front sight utilizes a unique photoluminescent Glow Dot, which absorbs surrounding light and emits a gentle glow when lighting is limited. The convex shape of the dot provides a larger surface area, maximizing light absorption and intensifying the brightness of the Glow Dot. Our primary objective when designing the DXT2 sights was to make them large and highly visible, addressing common issues such as aging eyes and deteriorating vision. During our testing, we observed that the orange front sight is most visible in daylight, while the yellow variant glows brighter in low-light environments. The rear sight features a shallow V shape, ensuring a simple, low-profile design that offers an extensive field of view.

To prevent confusion between the front and rear sights in high-stress situations, we adopted the "dot-the-i" sight picture. This sight picture consists of a tritium dot in the front sight and a tritium bar in the rear sight, facilitating quick and accurate target acquisition. In most gunfights, both the victim and attacker are in motion, with the victim primarily focused on the threat. The DXT2 Night Sights address these challenges by being big, bright, and easy to see, regardless of the time of day.

XS DXT2 Tritium Night Sights serve as exceptional defensive sight choices for your pistol, ensuring the front sight remains visible regardless of lighting conditions. With these sights, you will be prepared for any potential confrontation, regardless of the lighting conditions you’re in.


Sig Orange DXT2


DXT2 Big Dot Sight Features:

  • Tritium powered front and rear sight
  • Big Dot front measures 0.188"
  • High-contrast colored front sight 
  • Glow dot absorbs ambient light and glows in low light
  • Low-profile V rear provides greater visibility of front sight
  • Simple dot-the-"i" sight picture
  • Rear sight white outline with tritium center
  • Rear sight ledge for one-handed slide manipulations
  • Durable CNC machined steel 
  • 12-year warranty on tritium
  • 30 Day Satisfaction Guarantee
  • Fits standard holster options

XS DXT2 sights are easily installable by using a hammer and punch.


View Written Installation Instuctions or Watch Install Video.


Our Materials and Processes:

The sights are CNC machined from solid steel bar stock by our in-house machine shop. We design, machine, and insert our tritium to produce the highest quality possible and provide American Made products.


About XS Sights:

We are a small, second-generation family-owned business based in Fort Worth, TX, and our customers are family. We live, eat, and breathe guns. We offer easy DIY install instructions and a 30-Day Satisfaction Guarantee. If you have color vision issues and can't see the front dot, call us, and we will get another color shipped out - over 5% of the population has color blindness to a degree! 


Prop 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 reproductive harm. (For more information go to

Tritium Products — XS Sights warrants all handgun sights containing tritium to be free from defects in material and workmanship. Tritium illumination is warranted to glow for twelve (12) years. This warranty applies only to the original purchaser. Proof of purchase is required for an RMA. If this product is found to be defective, the manufacturer's only obligation is to replace the product at the manufacturer's discretion, provided that the product has not been damaged through misuse, modifications, neglect, or mishandling. XS Sights will not be responsible for product removal or installation labor costs. — Tritium illumination will dim throughout the product's life and is not subject to warranty claims. This warranty shall not apply to the finish on any portion of the product or weathering, as this is considered normal wear and tear. Sights improperly installed are not subject to warranty. — XS Sights only warrants products sold through authorized resellers. — All international sales are final and do not qualify for this warranty policy. Some authorized international resellers carry common warranty items to provide for their customers. For more information, please see our International Shipping Policy.

10 Reviews

  • 5

    Posted by Ken on Sep 3rd 2023

    Precision equipment. All it takes to install is a little patience and some judicious file work. Sight picture is bright and easy to acquire. I put a similar set on my Kimber Stainless Compact 20 years ago & they're still going strong. The tritium has obviously dimmed but the vivid sight color still works perfectly in reasonable light.

  • 5
    Excellent Sights!

    Posted by Mark on Jul 8th 2023

    Used the Big Dot Sights before and love them. Just replaced my RDS Sights with the Big Dot Sights as well. I much prefer them for a fast, easy and accurate acquistion. Very highly recommended!

  • 5
    Great product !

    Posted by Joe M Hartzog on Jun 17th 2023

    Great product !

  • 5
    DXT2 Night Sights

    Posted by Gary Decker on Jun 15th 2023

    I received the DXT2 Big Dot Night Sights for review on my YouTube channel. I had these installed on my Sig Sauer P365 by a professional gunsmith, replacing the original Siglite night sights. The gunsmith remarked that "I've never seen a dot this big before!" As I am getting into my 60's, and my eyesight isn't what it once was, I immediately noticed that I am picking up the front sight much more quickly than before - day or night. Night vision is remarkably improved, thanks to the big dot up front, which makes for quick front sight acquisition. The single line on the rear sight makes it easy to line things up. I 100 percent recommend the DXT2 Big Dot Night Sights, these are a great product.

  • 4
    Like it.

    Posted by Marco on May 1st 2023

    Pros: - Extraordinary Glue holds the iron sight in place. - With some practice very nice to shoot. Cons: - Could be even a bit brighter for me - Expensive, especially if you are an Non-US buyer.

  • 5
    Sig RCS 1911 & Sig P238

    Posted by Basil on Aug 18th 2022

    Easy install into both Sig pistols, now have XS Sights on all 8 of my pistols. I have used all the best sights; Dawson, Warren, Heinie, Hackathorn, Trijicon HD. XS are the easiest & fastest to shoot, and they also shoot just fine at longer distances.

  • 5
    DXT2 Big Dot Night Sights

    Posted by Wes Howe on Jun 8th 2022

    Great sights. Pulls your eye directly to the front sight where it belongs. Highly recommended!

  • 5
    DXT2 on Sig P226 SAO Legion

    Posted by CPO (SW/SS) USN on May 13th 2022

    Awesome Product for the top tier Sig Sauer P226 SAO 9mm Legion. Perfect Fit, Fantastic Sights for an incredibly accurate weapon. Definitely Recommend XS DXT2, worth every cent.

  • 5
    P226 SAO Legion

    Posted by CPO (SW/_SS) USN on Apr 26th 2022

    Absolutely fantastic sights for my NIB Sig Sauer P226 SAO 9mm Legion. Prefect Fit, outstanding sight system for the top tier P226. Definitely recommend this is upgrade!