Glock OEM Rear Night Sight for G42 / G43 Pistols
Glock
$56.69
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Glock
Glock OEM Rear Night Sight for G42 / G43 Pistols
The Glock OEM Rear Night Sight for the G42 and G43 is a factory-original upgrade that delivers confident, precise target acquisition in any lighting condition — from bright daylight to complete darkness.
- Tritium inserts glow reliably in low-light and no-light environments
- Contrasting insert design enables fast, intuitive sight alignment
- Slim 6.1mm profile engineered specifically for the G42 and G43 frames
- OEM Glock quality ensures exact fitment and long-term durability
- Drop-in replacement compatible with standard Glock sight dovetail
- Tritium self-luminous — no batteries or external light source required
Who This Is For
This rear night sight is ideal for G42 and G43 owners who carry concealed and need a dependable low-light sighting solution. Whether you're a first-time upgrader replacing factory plastic sights or a seasoned carrier refreshing worn tritium vials, this OEM Glock sight offers the peace of mind that comes with a manufacturer-grade component at an accessible price point.
Specifications
| Brand | Glock |
|---|---|
| Part Type | Rear Night Sight |
| Compatible Models | Glock G42, Glock G43 |
| Sight Width | 6.1mm (Slim Profile) |
| Illumination Type | Tritium (Self-Luminous) |
| Fit Type | OEM Drop-In Replacement |
| Dovetail Compatibility | Standard Glock Rear Dovetail |
| Battery Required | No |
Frequently Asked Questions
Will this rear night sight fit both the Glock G42 and G43?
Yes. This OEM Glock rear night sight is specifically designed for the G42 and G43 subcompact pistols, sharing the same slim 6.1mm dovetail profile. It is not cross-compatible with full-size or compact Glock models that use a wider sight profile, so always confirm your model before ordering.
How long do the tritium inserts last before they need to be replaced?
Tritium has a half-life of approximately 12 years, meaning your night sights will remain bright and effective for roughly 10–15 years of normal use before the glow begins to noticeably diminish. Many shooters choose to replace them around the 10-year mark as a best practice for self-defense reliability.
Do I need a gunsmith to install this rear sight, or can I do it myself?
Installing a Glock rear sight requires pressing the old sight out of the dovetail channel and seating the new one — a process that typically requires a sight pusher tool for safe, damage-free installation. While experienced DIY enthusiasts can handle this at home with the right tool, visiting a qualified gunsmith is recommended to ensure proper zero and avoid damage to the slide finish.
