AmeriGlo I-Dot Night Sights for Glock 42/43 - Green Tritium with White Outline Front & Green Rear (GL-105)
- Firearm Make Fit:
- Glock
The AmeriGlo I-Dot night sights for Glock 42/43 are purpose-built for shooters who need fast, reliable target acquisition in low-light conditions. The I-dot design stacks a front tritium dot over a rear tritium dot, creating an intuitive vertical alignment method that cuts down the time between drawing and getting on target—a genuine advantage in any defensive scenario. Paired with AmeriGlo's extended rear sight, these sights give you a slightly longer sight radius than factory Glock sights, which naturally improves sight picture and consistency when it matters most.
What sets these sights apart is attention to detail in real-world shooting. The green tritium front sight pairs with a bright white outline, making the front sight pop without bleeding your night vision in tactical or home-defense lighting. The rear sight is green tritium with a square notch and an undercut face to kill glare—a design choice that works just as well indoors under artificial light as it does outdoors. All of that sits in a steel frame finished in matte black, so there's no shine to betray your position or distract in low light.
AmeriGlo builds these for Glock 42 and 43 pistols specifically, so if you carry either of those slim single-stacks, you're getting a direct fit. Installation requires basic gunsmith tools or a professional hand, but once they're zeroed, you'll appreciate the confidence that comes with sights you can actually see when the sun goes down.
Key Features
- I-dot configuration for quick vertical alignment and fast target acquisition
- Green tritium front sight with white outline; green tritium rear sight
- Extended rear sight provides increased sight radius over factory Glock sights
- Undercut rear face reduces glare in all lighting conditions
- Steel frame with matte black finish
- Square notch rear sight for reliable sight picture
- Designed specifically for Glock 42 and Glock 43
Specifications
| Brand | AmeriGlo |
| Model | GL-105 |
| Application | Glock 42, Glock 43 |
| Front Sight Width | .140 inch |
| Rear Sight Width | .165 inch |
| Front Sight Configuration | Green tritium with white outline |
| Rear Sight Configuration | Green tritium with square notch |
| Frame Material | Steel |
| Finish | Matte black |
| Design Feature | Extended rear sight, undercut rear face |
Frequently Asked Questions
Will these sights fit my Glock 42 or 43?
Yes. The AmeriGlo I-Dot GL-105 is engineered specifically for Glock 42 and Glock 43 pistols.
What's the advantage of the I-dot design?
The I-dot stacks a tritium dot on the front sight over a tritium dot on the rear sight, which speeds up vertical alignment. This dot-over-dot method cuts target acquisition time in low light and makes it easier to establish a consistent sight picture quickly.
How do these perform in low light?
Both the front and rear sights use green tritium, which is visible in darkness without requiring light activation. The white outline on the front sight makes it easy to pick up even in dim interior lighting, while the undercut rear face prevents glare that can wash out your sight picture in artificial light.
Do these sights extend my sight radius?
Yes. The rear sight is extended compared to factory Glock sights, which increases your sight radius. A longer sight radius naturally improves accuracy and sight picture consistency at the range and in the field.

