The Night Fision Optic Plate 509T with Tritium Front Sight for Glock FS MOS GLK-OPBS-509T-MOS-YGZX is a premium mounting solution designed specifically for Glock Full Size MOS pistols. This complete combo includes a precision-machined optic plate that adapts the Glock MOS RMSc footprint to the popular Trijicon RMR / Holosun 509T footprint, along with a high-visibility tritium yellow front sight. This package allows Glock 17 MOS, 19 MOS, 34 MOS, and other full-size MOS models to mount larger enclosed emitter optics like the Holosun 509T while maintaining reliable low-light backup iron sights.
Why Choose the Night Fision Glock FS MOS 509T Optic Plate Combo?
Glock MOS pistols come with a factory RMSc optic cut that limits compatibility with many popular red dot sights. The Night Fision GLK-OPBS-509T-MOS-YGZX solves this limitation by providing a robust adapter plate that converts the RMSc cut to accept 509T / RMR footprint optics. The included tritium front sight features a bright yellow outline, offering excellent visibility in both daylight and low-light conditions. This combo is ideal for duty, competition, and defensive shooters who want the durability and features of an enclosed emitter optic like the Holosun 509T while still having functional backup sights.
Key Features of the Night Fision Glock FS MOS 509T Optic Plate
- 509T / RMR Footprint Optic Plate – Converts Glock MOS RMSc cut to accept Holosun 509T, Trijicon RMR, SRO, and other RMR-pattern optics
- Tritium Yellow Front Sight – Self-illuminating tritium with a high-visibility yellow outline for fast target acquisition
- Glock Full Size MOS Compatible – Designed for Glock 17 MOS, 19 MOS, 34 MOS, 45 MOS, and other full-size MOS models
- Co-Witness Ready – Engineered for a lower 1/3 co-witness with most 509T and RMR footprint optics
- Precision Machined Steel – CNC-machined from high-strength steel for durability and zero retention
- Low-Light Performance – Tritium illumination provides reliable aiming without batteries
- Complete Combo – Includes both the optic plate and tritium front sight in one package
- Model GLK-OPBS-509T-MOS-YGZX – Official Night Fision part number
Performance and Build Quality
The Night Fision Optic Plate 509T with Tritium Front Sight is built to Night Fision’s high standards of quality and precision. The optic plate is machined from solid steel and finished for corrosion resistance, providing a stable and repeatable mounting platform that maintains zero under heavy recoil. The tritium front sight uses premium tritium vials with a bright yellow outline that dramatically improves daytime visibility while ensuring the sight remains illuminated in darkness. This combination allows shooters to confidently run an enclosed emitter optic as their primary sighting system while having a reliable backup front sight. The plate is designed for easy installation and offers a clean, low-profile solution for mounting larger red dot sights on Glock Full Size MOS pistols.
Technical Specifications
| Product Name | Night Fision Optic Plate + Tritium Front Sight Combo |
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| Model Number | GLK-OPBS-509T-MOS-YGZX |
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| UPC | 810138540923 |
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| Compatibility | Glock Full Size MOS (17, 19, 34, 45, etc.) |
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| Optic Footprint | 509T / RMR Footprint (from RMSc) |
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| Front Sight | Tritium with Yellow Outline |
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| Material | Precision Machined Steel |
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| Illumination | Self-Illuminating Tritium |
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| Product Type | Optic Plate + Night Sight Combo |
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| Key Feature | RMSc to 509T Adapter with Tritium Front Sight |
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| Best For | Glock MOS Red Dot Upgrades, Duty Use, Competition, Low Light Shooting |
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Premium 509T mounting solution for Glock Full Size MOS.
The Night Fision GLK-OPBS-509T-MOS-YGZX delivers a secure 509T optic plate and bright tritium front sight in one complete package.
Important Notice: This product is intended for lawful use only. It is the buyer’s responsibility to ensure the product is suitable for their intended application and that they comply with all applicable federal, state, and local laws regarding firearm accessories and ownership. Always follow proper firearm safety rules. Keep out of reach of children. This product is intended for lawful use only.
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