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XS Sights
The XS Sights MNMLST for Glock 19 MOS is a co-witness backup iron sight system built for shooters running optics on their duty or duty-inspired pistols. Unlike generic BUIS, these sights are engineered to optimize your sight picture through the optic window, so you get a perfect zero relationship right out of the box without fussing with height-over-bore math. The Glock 19 MOS platform lets you mount optics directly to the slide; the XS MNMLST fits that system and works with XS and Glock MOS plates.
The front sight on this set features a tritium dot for reliable aiming in low light, dim interiors, or transitional shooting scenarios—the kind of edge that matters when your primary optic fails or gets compromised. The rear sight uses blacked-out serrations to kill glare and keep your focus on the tritium front dot, not on reflections. Both front and rear are precision CNC machined from steel and finished with BlackNitride for genuine corrosion resistance, so they'll stay functional whether you're running drills at the range or carrying in wet conditions.
Minimal profile means these sights stay out of your way and don't compete for real estate in your optics window. They're there when you need them—a true backup system, not an afterthought. If you're building or upgrading a Glock 19 MOS setup with an optic mounted, the XS MNMLST gives you a legitimate iron sight option that's reliable, co-witnessed properly, and ready for any light condition.
| Brand | XS Sights |
| Model | MNMLST |
| Fits | Glock 19 MOS |
| Front Sight | Tritium dot |
| Rear Sight | Blacked-out serrations |
| Material | CNC machined steel |
| Finish | BlackNitride |
| Compatibility | XS and Glock MOS plates |
Yes. These sights are designed for Glock 19 MOS pistols and work with both XS and Glock MOS mounting plates. They're engineered to provide proper co-witness when used with an optic mounted on your MOS slide.
The tritium dot self-illuminates in low light, darkness, and indoor shooting scenarios, giving you a usable aiming reference when your primary optic or ambient light isn't enough. The blacked-out rear sight serrations help you focus on that tritium front dot.
No. The MNMLST is designed with a minimal profile that stays out of your optics window. The co-witness geometry lets you see both the sight picture and your optic reticle without obstruction.
Yes. That's the whole purpose of backup iron sights. The XS MNMLST provides a reliable, tritium-equipped aiming system you can use if your primary optic malfunctions or gets damaged.
XS Sights
The XS Sights MNMLST for Glock 19 MOS is a co-witness backup iron sight system built for shooters running optics on their duty or duty-inspired pistols. Unlike generic BUIS, these sights are engineered to optimize your sight picture through the optic window, so you get a perfect zero relationship right out of the box without fussing with height-over-bore math. The Glock 19 MOS platform lets you mount optics directly to the slide; the XS MNMLST fits that system and works with XS and Glock MOS plates.
The front sight on this set features a tritium dot for reliable aiming in low light, dim interiors, or transitional shooting scenarios—the kind of edge that matters when your primary optic fails or gets compromised. The rear sight uses blacked-out serrations to kill glare and keep your focus on the tritium front dot, not on reflections. Both front and rear are precision CNC machined from steel and finished with BlackNitride for genuine corrosion resistance, so they'll stay functional whether you're running drills at the range or carrying in wet conditions.
Minimal profile means these sights stay out of your way and don't compete for real estate in your optics window. They're there when you need them—a true backup system, not an afterthought. If you're building or upgrading a Glock 19 MOS setup with an optic mounted, the XS MNMLST gives you a legitimate iron sight option that's reliable, co-witnessed properly, and ready for any light condition.
| Brand | XS Sights |
| Model | MNMLST |
| Fits | Glock 19 MOS |
| Front Sight | Tritium dot |
| Rear Sight | Blacked-out serrations |
| Material | CNC machined steel |
| Finish | BlackNitride |
| Compatibility | XS and Glock MOS plates |
Yes. These sights are designed for Glock 19 MOS pistols and work with both XS and Glock MOS mounting plates. They're engineered to provide proper co-witness when used with an optic mounted on your MOS slide.
The tritium dot self-illuminates in low light, darkness, and indoor shooting scenarios, giving you a usable aiming reference when your primary optic or ambient light isn't enough. The blacked-out rear sight serrations help you focus on that tritium front dot.
No. The MNMLST is designed with a minimal profile that stays out of your optics window. The co-witness geometry lets you see both the sight picture and your optic reticle without obstruction.
Yes. That's the whole purpose of backup iron sights. The XS MNMLST provides a reliable, tritium-equipped aiming system you can use if your primary optic malfunctions or gets damaged.
