Blackout Tritium Sights for Glock Pistols
NineX19 Blackout Tritium Sights combine a green Night Fision® tritium front sight, a clean blacked-out rear, and a unique installation-friendly rear-sight design. Machined punch holes provide controlled contact points for adjustment, helping reduce the chance of a punch slipping and marring the slide during installation.
Precision machined from steel and finished in durable black QPQ nitride, these sights are available in Mid and Tall heights for compatible slide-mounted optics, suppressors, and custom Glock upper configurations.
Designed for Cleaner Rear-Sight Installation
Installing or adjusting a conventional rear sight with a punch can easily mark the sight, damage its finish, or mar the edge of the slide if the tool slips. The NineX19 rear sight is machined with a dedicated punch hole on each side, giving the installer a controlled contact point inside the sight instead of striking its finished exterior.
This distinctive design makes it easier to move the rear sight from either direction while reducing the risk of cosmetic damage during installation and adjustment. A locking set screw helps secure the rear sight after positioning. Proper sight-installation tools, a non-marring punch, and correct fitting procedures are still recommended.
Front Tritium with a Blacked-Out Rear
The front sight contains a green Night Fision® tritium insert for visibility in reduced light. The rear sight is intentionally blacked out and does not contain tritium inserts or painted dots. This creates an uncluttered sight picture that keeps visual emphasis on the front sight during daylight and low-light use.
Choose Your Sight Height
Mid Height — Approximate Lower 1/3 Co-Witness
The Mid-height configuration is designed to provide an approximate lower 1/3 co-witness with many slide-mounted red-dot optics. It keeps the iron sights lower in the optic window, preserving a less obstructed sight picture while keeping backup irons visible and usable.
- Front blade height: 0.2700 inches
- Rear blade height: 0.3165 inches
- Rear notch width: 0.1500 inches
Tall Height — Additional Optic and Suppressor Clearance
The Tall configuration provides additional sight clearance for many pistol suppressors, taller optic bodies, mounting plates, and other upper configurations that require sights above the Mid-height profile.
- Front blade height: 0.3220 inches
- Rear blade height: 0.3710 inches
- Rear notch width: 0.1500 inches
Exact co-witness position depends on the slide’s optic-cut depth, optic body height, mounting plate, and selected sight height. Compare these measurements with your complete upper configuration before ordering.
Glock Sight Compatibility
These sights are designed for compatible standard-width, double-stack Glock pistols, including Glock 17, Glock 19, Glock 34, Glock 45, and Glock 47 models. They are not intended for slimline Glock 43, 43X, or 48 slides.
Aftermarket slides, unusually deep optic cuts, mounting plates, suppressors, and other upper modifications can affect sight clearance and co-witness position. Confirm the listed dimensions against your slide, optic, and intended setup before selecting Mid or Tall sights.
Features
- Unique rear-sight punch holes for controlled installation and adjustment
- Helps reduce the risk of slipping and marring the slide during installation
- Green Night Fision® tritium front sight
- Plain black rear sight without tritium or painted dots
- Mid height designed for an approximate lower 1/3 optic co-witness
- Tall height provides additional optic and suppressor clearance
- CNC-machined steel construction
- Durable black QPQ nitride finish
- Rear locking set screw
- Designed for compatible standard-width, double-stack Glock slides
Important Notice
This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.










Joseph (verified owner) –
Works great even with the low profile red dot. Would be nice if rear sight had the dots.
Anonymous (verified owner) –
Excellent quality and price!
Brad P. (verified owner) –
Awesome experience and customer service was very helpful
Minh N. (verified owner) –
These sights were excellent, and pricing, processing and delivery were better than expected!
Todd (verified owner) –
Need more green around tritium front sight
Lester T. (verified owner) –
Great sights, love them. Mid height gives you a nice lower Co/witness with gen6 glock19 and Vortex ccw red Dot. Perfect !
Maurice A. (verified owner) –
Perfect Fit!
Everything arrived super fast!
Excellent Customer Service, Ian answered on all my questions and gave superb advice!
Highly recommend!