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DXT2 Big Dot Night Sights - Colt

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The DXT2 Big Dot Night Sights are the ultimate upgrade for your Colt Mustang or Colt 1911 pistol.

Designed to give you an edge in low-light situations, our DXT2’s mean you'll never again have to compromise on precision and accuracy due to lack of lighting.

Whether you're a competitive shooter, law enforcement professional, self-defense enthusiast, or simply someone who wants the best of the best when it comes to your firearm's sighting system, the DXT2 Big Dot Tritium Night Sights are the perfect choice for you.

Experience unparalleled visibility and speed when it matters most and upgrade your Colt Mustang or Colt 1911 with XS Sights today!

DXT2 Big Dot Sight Overview:

  • Tritium powered front sight
  • Choice of tritium or non-tritium rear
  • 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 (DXT2 only)
  • Rear sight white stripe non-tritium (DXW2 only)
  • Rear sight ledge for one-handed slide manipulations
  • Durable CNC machined steel 
  • 10 Year Warranty 
  • 30 Day Satisfaction Guarantee
  • Fits standard holster options


Don't Struggle to See Your Front Sight!

DXT2 Night Sights are defensive tritium sights designed to enhance your EDC pistol. The front sight uses a proprietary photoluminescent Glow Dot that absorbs ambient light and glows in low light. The convex dot's additional surface area increases light absorption, intensifying the charge of the Glow Dot. We designed the DXT2 sights to be large and highly visible; this helps solve many issues, from aging eyes to deteriorating vision. We've found that the orange front tends to be most visible in daylight settings and that yellow glows brighter in low light. The shallow V rear has a simple, low profile that provides a wide field of view. The dot-the "i" sight picture, with a tritium dot in the front and a tritium bar in the rear, prevent confusing the front and rear sight in high-stress situations. In most gunfights, the victim and attacker are moving, and the victim is threat-focused. DXT2 Night sights are big, bright, and easy to see day or night!

Also available with a non-tritium rear sight for those who prefer only one glowing index point and a more budget-friendly option. DXW2 Night Sights also feature a dot-the "i" sight picture, but with a white stripe non-tritium rear and a tritium front sight. The front sight offers the same excellent Glow Dot and tritium visibility. The simplistic rear and reflective white stripe provide a visible alignment point while reducing focus on the rear and driving attention to the front sight.

XS DXT2 and DXW2 Tritium Night Sights are excellent defensive sight options for your pistol that will keep your front sight visible day or night. That way, you'll be ready for the fight, no matter the light.

About XS Sights

The express sight concept started it all for us over 25 years ago. Our founders wanted to engineer a sighting system primed for defensive situations that was big and easy to see. Modeled after African big game hunting sights, express sights are designed to give you a visible, and combat accurate flash sight picture when seconds count.  

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. 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 instructions, a 30-Day Satisfaction Guarantee, and stand behind a 10-Year No Questions Asked Warranty on all our sights. If you break your sight training, we want to hear about it. If you damage your sight installing it, give us a call, and we will get a new one mailed out after a friendly lecture from one of our gunsmiths. 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!) Either way, our products are built to take a beating, and we have your back if anything happens.


DXT2 Big Dot Sight Installation: requires a .330 X 65 degree Front Dovetail cut and filing to fit sight to dovetail. do not use a sight press / pusher tool.

Need help? View our Written Installation Instuctions here!



WARNING-Cancer and Reproductive Harm –



This XS Sights product is protected by our No Questions Asked Warranty. We will replace the product if it becomes damaged in any way or if the tritium stops glowing prior to 10 years. 30-Day Satisfaction Guarantee: Try a new set of night sights risk free for 30 days. If you are dissatisfied with your purchase you can 1. Exchange the sights for a different available option 2. Return the product to the point of purchase for a refund. Sights that have been installed and test fired qualify for this program. Products must be purchased through XSSIGHTS.COM or a participating dealer partner. All dissatisfied products must be returned. Sight installation fees incurred are not subject for refund. Return shipping is payed by the customer. For assistance email or call (888) 744-4880.

4 Reviews

  • 5
    great sight

    Posted by Leslie Thrasher on Dec 28th 2022

    wish had orange front dot

  • 3
    rear sight

    Posted by Mark L. Starr on Nov 6th 2022

    rear sight is not real bright can barely see it, but could also be my eyesight, love the front sight

  • 5
    Best night sights ever!

    Posted by USNGunner on May 12th 2022

    I love the Big Dot sights. Not going to lie, I'm a fan boy. I'm 61 years old, and I can find these sights in the dark. They are a beacon in the darkness and give me great peace of mind.

  • 5
    Big dots for 1911

    Posted by Matt on Jan 15th 2022

    Can’t say a lot about them as to functionality as I haven’t installed them yet. Had a set before and they worked great, so I don’t foresee any issues with these. And the big dot works great with old eyes. Have no problem recommending these.