Description
Once you add a red dot to a Glock, your factory irons usually vanish behind the optic or get in the way. This Night Fision Optic-Height Fiber Sight fixes that. The .330 to .353 blade height is built to give you a lower 1/3 co-witness with plate-mounted optics, so your backup irons line up neatly in the bottom of the window instead of stealing your view. The front carries a green fiber optic rod that pulls in ambient light and throws a crisp, bright aiming point during the day, while the rear stays blacked out to keep your focus locked on that front dot.
What Sets the GLK-001 Fiber Sight Apart
Night Fision builds these out of CNC-machined steel with a corrosion-resistant black nitride finish, so they hold up to the beating a carry or range gun takes. Both the front and rear faces are serrated to cut glare, which matters more than folks expect when you are working in bright sun or under harsh indoor lighting. Because it runs on a fiber rod instead of a battery, there is nothing to charge, replace, or worry about failing when you need it. It is always ready to go.
Matching the Optic-Height Sight to Your Setup
This .330 to .353 configuration is dialed in for a plate-mounted setup, playing well with optics like the Trijicon RMR and SRO, Holosun 507c, 407c, and 508t, Swampfox Liberty and Justice, and even a plate-mounted Aimpoint ACRO P-2. It fits a wide range of Glocks including the 17, 19, 22, 23, 34, 35, 40, 41, 45, and 47. If you are running a different mounting style or want a different co-witness, double-check your blade height against your optic before ordering, since that number is what determines where the sights land in the window.
Installation is straightforward for anyone comfortable with a sight pusher, and a lot of owners recommend using one rather than fighting the rear dovetail by hand. Made in the USA by a Metro Detroit company with deep roots in tritium and optics engineering, this is a clean, no-nonsense iron sight upgrade for a red-dot Glock.
Key Specifications
- Manufacturer: Night Fision
- Manufacturer Part Number: GLK-001-330-353-GFZX
- UPC: 856386007481
- Model: Optics Ready Fiber Sight
- Product Type: Gun Sight
- Front Sight Type: Green Fiber Optic
- Rear Sight Type: Blacked Out, Square Notch
- Blade Height Range: .330 to .353 (Optic Height)
- Co-Witness: Approximate Lower 1/3 with plate-mounted optics
- Material: CNC-Machined Steel
- Finish: Black Nitride
- Color: Black
- Fits: Glock 17, 19, 22, 23, 34, 35, 40, 41, 45, 47
- Optic Compatibility: RMR, SRO, Holosun 507c/407c/508t, Swampfox, ACRO P-2 (plate-mounted)
- Country of Origin: USA
What’s Included
- Green fiber optic front sight
- Blacked-out square notch rear sight
- Front sight screw
Frequently Asked Questions
Will the GLK-001 fiber sight co-witness with my red dot?
This .330 to .353 blade height is designed for an approximate lower 1/3 co-witness when your optic is plate-mounted, like an RMR, Holosun 507c, or plate-mounted ACRO P-2. It is meant to pair with optics, not suppressors, so it sits lower in the window than a suppressor-height sight. Since co-witness depends on your exact optic and mounting plate, compare your blade height against your setup before installing.
Does the front fiber optic need batteries or charging?
No. The green fiber rod gathers ambient light on its own, so there is nothing to charge, no battery to swap, and nothing to fail at the wrong moment. It is bright in daylight and always ready to go.
Which Glocks does this Night Fision sight set fit?
It is built for a broad range of Glock models including the 17, 19, 22, 23, 34, 35, 40, 41, 45, and 47. As long as your slide uses the standard Glock sight dovetails, this set will drop in.
Is this hard to install on my own?
It is a straightforward job if you have the right tools. Many owners recommend using a sight pusher rather than trying to drift the rear by hand, which makes the whole process quicker and cleaner. Be sure to use the front sight screw that comes in the box, and if you are not comfortable doing it yourself, a gunsmith or armorer can knock it out fast.





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