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Best Glock 19 MOS Sights – Co-Witness & Suppressor-Height Options
Glock 19 MOS Sights – Precision Meets Versatility
If you own a Glock 19 MOS and want to take full advantage of its optics-ready platform, upgrading your sights is a game-changer. Whether you're running a red dot or prefer co-witnessing irons, the right Glock 19 MOS sights will boost your accuracy and speed in any environment.
At Mounts Plus, we carry the best MOS-compatible sights from leading brands like Trijicon, Rival Arms, Truglo, and Meprolight—each designed to help you shoot with confidence.
What Are Glock 19 MOS Sights?
Glock’s Modular Optic System (MOS) allows you to mount red dot optics directly to your slide. However, most red dots sit higher than standard sights. That’s why MOS-compatible sights—often called suppressor-height or co-witness sights—are taller, giving you a proper sight picture through or around your optic.
Whether you’re using your Glock 19 for everyday carry, competition, or home defense, these sights give you a reliable backup and better target acquisition.
Top Glock 19 MOS Sight Options
We’ve handpicked top-performing MOS sights for Glock 19 users across all preferences:
🔸 Trijicon HD XR MOS Sights
- Ultra-bright tritium front post
- Slim front blade for faster target transitions
- Designed for perfect co-witness with RMR-style optics
🔸 Truglo Tritium Pro Sights
- Bright white front outlines with tritium glow
- Available in both high and low versions for optic flexibility
- Great for all lighting conditions
🔸 Rival Arms Tritium Night Sights
- MOS-ready height with bold front post
- Available in orange and white configurations
- Solid steel construction for durability
🔸 Meprolight Glock MOS Sights
- Low-light performance trusted by military and law enforcement
- Rear dots for quick alignment under pressure
- Works with most red dots and MOS plates
Choosing the Right Glock 19 MOS Sights
Not sure what to pick? Here’s what to consider:
- Optic Type: Ensure your sights are tall enough to co-witness with your red dot (e.g., RMR, Holosun, etc.).
- Height Preference: Choose between full co-witness or lower 1/3 based on how much sight picture you want.
- Lighting Needs: Tritium is great for low-light; fiber optic excels in bright environments.
- Usage: Defensive shooters may prefer minimal rear sight distractions, while range shooters may like precise three-dot systems.
Installation: DIY or Professional?
Most Glock 19 MOS sights can be installed at home with a sight pusher tool and care. That said, we recommend professional installation if you're unsure—it ensures zeroing and durability, especially with tall sights paired to an optic.
Why Choose Mounts Plus?
We’re more than just a parts supplier—we’re shooters ourselves. That’s why we only stock battle-tested MOS sights that meet our standards for reliability, clarity, and durability. Every product on this page is vetted for Glock 19 MOS compatibility and performance under stress.
Glock 19 MOS Sights FAQs
Q: Do I need suppressor-height sights for a Glock 19 MOS with a red dot?
A: Yes, suppressor-height or MOS-specific sights allow co-witnessing through the optic, giving you a backup aiming option.
Q: Can I use standard Glock sights with a MOS slide?
A: Technically yes, but standard sights will sit too low to be usable with most red dots mounted to an MOS plate.
Q: What brands make the best Glock 19 MOS sights?
A: Trijicon, Truglo, Rival Arms, Meprolight, and XS Sights are top-tier options favored by professionals and enthusiasts.
Q: Are Glock 19 Gen 5 MOS sights the same as Gen 4?
A: Yes, sights are interchangeable across Gen 1–5 as long as you match MOS compatibility and slide cuts.
Upgrade Your Glock 19 MOS Today
Don’t settle for factory irons that don’t match your optic setup. Equip your Glock 19 with high-visibility, rugged MOS sights and shoot with precision—no matter the lighting or optic.