Ameriglo Cap Tritium Night Sights Lumigreen Sw-618
$63.86
The AmeriGlo Cap Tritium Night Sights (LumiGreen SW-618) bring reliable low-light aiming to your Smith & Wesson M&P pistol. Built with tritium luminescence technology, these night sights glow in darkness without batteries or charging, making them ideal for defensive shooters, law enforcement, and anyone who trains or carries in variable lighting. The combination of self-illuminating tritium and photoluminescent paint gives you multiple ways to locate your sight picture—whether you're in complete darkness or transitioning between light and shadow.
This set pairs a green tritium-filled square outline front sight with a painted line rear sight. The front sight's square design helps your eye naturally center the dot for consistent shot placement, while the rear maintains a clean sight picture. After exposure to ambient light, the LumiGreen paint glows noticeably for approximately 10 minutes, providing a backup glow-in-the-dark feature that works independently of the tritium. It's a straightforward, low-maintenance upgrade—no active elements to fail, no moving parts to foul.
If you carry or shoot an M&P regularly and want sights that perform when it matters most, tritium night sights remove the guesswork in low light. They're especially valued by shooters who practice at dusk, train in indoor ranges with minimal ambient light, or simply want the confidence of always being able to locate their sights quickly.
Key Features
- Tritium luminescence—glows in darkness without batteries or external charging
- Green square outline front sight for intuitive target acquisition and centering
- Painted line rear sight for a clean, uncluttered sight picture
- LumiGreen photoluminescent paint glows for ~10 minutes after light exposure, offering added visibility in transitions
- Designed and installed directly on Smith & Wesson M&P models
- Rugged, maintenance-free construction ideal for duty, defense, or range use
Specifications
| Brand | AmeriGlo |
| Product Line | Cap Tritium Night Sights |
| Model | SW-618 (LumiGreen) |
| Compatibility | Smith & Wesson M&P |
| Front Sight | Green tritium square outline |
| Rear Sight | Painted line |
| Light Source | Tritium + photoluminescent paint |
| Glow Duration (Paint) | ~10 minutes after light exposure |
Frequently Asked Questions
Will these night sights fit my Smith & Wesson M&P?
Yes, the SW-618 is engineered specifically for Smith & Wesson M&P models. Confirm your M&P variant with the manufacturer if you have questions about fitment on less common generations.
Do tritium sights need batteries or recharging?
No. Tritium sights are self-illuminating and require no batteries, charging, or external power source. They continuously glow as a function of the tritium gas sealed inside the vial and will remain functional for many years.
What's the difference between the tritium and the LumiGreen paint?
The tritium glows continuously in darkness. The LumiGreen paint absorbs ambient light and glows for approximately 10 minutes afterward. Together, they provide reliable illumination in very low light and a brief glow-in-the-dark feature during rapid transitions.
Can I use these sights for both range shooting and everyday carry?
Absolutely. Tritium night sights are designed for duty and defensive use, so they excel in both range training and carry scenarios. Many shooters prefer them specifically because they work in any lighting condition without added complexity.
