Description
The TruGlo TG231N1W Tritium Pro set is a straightforward upgrade for anyone who wants their 1911 ready around the clock. In daylight you get clean white-outline dots that line up fast, and once the sun goes down those same dots shift to a steady green glow. The tritium does the work on its own, so there are no batteries to swap and nothing to charge up before you head out. That glow runs 24/7, which is exactly what you want on a defensive pistol or a nightstand gun.
What Sets the Tritium Pro Apart
TruGlo carried its Pro-level features over from the popular TFX line into this Tritium Pro set. The front sight uses a white Focus Lock ring that helps your eye snap onto the front post quicker, and the rear runs a U-notch that frames that front dot cleanly for faster, more accurate alignment. The rear sight also has an angled forward edge, giving you a hard surface to rack the slide one-handed against a belt or boot heel if you ever need to. It's a small detail that matters when things get tense.
Steel Build That Holds Up
These aren't flimsy. The bodies are CNC-machined from solid steel and coated in TruGlo's Fortress Finish, a permanent protective layer that fights off rust and holds up to regular carry and cleaning. The Swiss tritium inside is the good stuff, known for consistent, bright output over the long haul. The compact, snag-resistant profile keeps the factory sight radius intact and slides in and out of standard holsters without hanging up.
Fitment for Your 1911
This particular set is cut for the Novak LoMount pattern, .260 front and .450 rear, which covers 5" Government .45 ACP 1911s and the Ruger SR1911 with a fixed rear sight. It's worth confirming your slide has that dovetail before ordering, since dovetail dimensions can vary a bit between makers. Some light fitting is common with 1911 sights, and having a gunsmith with the right pusher tool handle the install is the way to go for a clean, damage-free result.
Key Specifications
- Manufacturer: TruGlo
- Manufacturer Part Number: TG231N1W
- UPC: 788130023914
- Model: Tritium Pro / Government
- Product Type: Front/Rear Sight Set
- Fitment: 1911 5" Government .45 ACP, Ruger SR1911 (fixed rear)
- Sight Cut: Novak LoMount .260 Front / .450 Rear
- Style: Square Front / U-Notch Rear
- Illumination: Swiss Green Tritium
- Front Sight: White Focus Lock Ring
- Construction: CNC-Machined Steel
- Finish: Fortress Finish Protective Coating
- Country of Origin: Assembled in the U.S.A.
- Shipping Weight: 0.165 lb
What’s Included
- TruGlo Tritium Pro front sight (.260 height, white Focus Lock ring)
- TruGlo Tritium Pro rear sight (.450 height, U-notch)
Frequently Asked Questions
What handguns do the TG231N1W Tritium Pro sights fit?
This set is designed for 1911 5" Government .45 ACP models and the Ruger SR1911 with a fixed rear sight. It uses the Novak LoMount cut pattern with a .260 front and .450 rear height. Since dovetail dimensions can differ between manufacturers, check your slide before ordering to make sure it's the Novak LoMount pattern.
Do the Tritium Pro night sights need batteries or charging?
No. The green glow comes from Swiss tritium, which produces light on its own with no batteries and no need to charge it up under a lamp or flashlight. The dots glow continuously, day and night, so the sights are always ready when you are.
How do the sights look in daylight versus the dark?
During the day the dots read as standard white outlines, giving you a clean, familiar sight picture. Once light drops off, those same dots glow steady green so you can still get a good aim in the dark. The front Focus Lock ring helps your eye find the front post quickly in either condition.
Can I install these Tritium Pro sights myself?
It's possible if you have the right sight pusher tool and some experience, but a professional install is the smart move. Some fitting is common with 1911 sights, and a gunsmith with the proper equipment can seat them cleanly without marring the sight or slide. Improper pressing is the fastest way to damage a set, so don't force it.





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