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Questions & Answers
Will these sights fit glock 21? Manufacturer Answer

Yes, these sights are compatible with a Glock 21 and would provide a lower 1/3rd co-witness on a MOS slide with an RMR or 507c height optic.

by Night Fision, Manufacturer, March 18, 2026
Do these work with any g3 or g3c?? Manufacturer Answer

Only if those two pistol models accept Glock footprint sights.

by Night Fision, Manufacturer, January 28, 2026
Customer Reviews
Most Recent Reviews
perfect co-witness for my red dot by Marty Bell, Verified Owner, March 17, 2026
I have a Holosun red dot on my G19. This work perfectly to co-witness.
Most Recent Reviews
Night fision optics ready stealth lower 1/3 night sight by scooter, Verified Owner, February 6, 2026
These sights were easy to install, came with the Allen wrench to tighten the set, screw in the rear sight. The tritium front sight is ultra bright! And the height of these sites make a perfect lower 1/3 co-witness with my hollow son 507. Although I d...
Read More...
Most Recent Reviews
Best Night sights by Cody, Verified Owner, October 18, 2025
Probably the best brand for night sights I've seen and gotten and they look the best. I've got two different sizes for me glock 47 and glock 19 gen 5's. Definitely recommend getting theses.
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Great sights by Daniel, Verified Owner, October 26, 2024
I used these on an Advantage Arms .22 conversion for a Glock 19 and needed a slightly taller set of sights to clear my suppressor. I didnt need a full height set of suppressor sights since it was a smaller .22 suppressor so I used these and they work...
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Most Recent Reviews
Night Fision always recommended by Onettd, March 23, 2024
You can’t go wrong with NF sights. I wish I can just order all the time with them.
Most Recent Reviews
Good Set of sights by Ton E, Verified Owner, March 8, 2024
Previouslypurchased Night Fision sights for my M2.0 compact got them for a Glock love these sights.
Read All 7 Reviews
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Product Info for Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set

Night Fision night sights offer a revolutionary new design that with brighter, more vivid, aiming dots. Like all night sights, Night Fision uses self-illuminating Tritium to get the ''always on'' glow that makes them so effective. Night Fision sights have 30% more Tritium than most sights on the market. The Tritium insert isn't surrounded by a painted-on ring, but rather one made of a daylight fluorescing material that produces optimum visibility in daylight. Night Fision's Optics Ready Stealth Series (ORS) sights are engineered to offer a lower 1/3 co-witness with your slide mounted red dot sight. As an alternative to repurposing Suppressor Height sights, ORS sights are designed from the dovetail up to work as back up sights for red dots, obscuring less of the optic window while still allowing three dot sight alignment if needed.image

Specifications for Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set:

Manufacturer: Night Fision
Gun Make: Glock
Gun Model: Glock 40, Glock 34, Glock 22, Glock 17, Glock 41, Glock 23, Glock 19, Glock 47, Glock 45, Glock 35
Color: Black
Sight Style: OEM Height
Fabric/Material: High Quality 4140 Steel
Gun Type: Pistol
Front Blade Height: 0.33 in
Rear Blade Height: 0.353 in
Height: 0.434 in
Illumination Type: Tritium
Illumination Color: Green

Features of Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set

  • Brightest Tritium Night Sights on the market
  • Domed lens collimates tritium rays for a sharper sight picture
  • Serrated for low-glare
  • CNC Machined out of high quality steel
  • Black Nitride coating used to improve wear and corrosion resistance
  • Installation: Gunsmith Recommended, for Installation Information please review Night Fision Install Guide

Package Contents:

  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set

Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set Orderable Models

List of Orderable Models

  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Black Front Ring, Blank Rear Sight, GLK-001-330-353-ZGZX , MPN: GLK-001-330-353-ZGZX , UPC: 810116038022 , Code: 32J-AP-NRSL-GLK-001-330-353-ZGZX
  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Orange Front Ring, Blank Rear Sight, GLK-001-330-353-OGZX , MPN: GLK-001-330-353-OGZX , UPC: 810116038008 , Code: 32J-AP-NRSL-GLK-001-330-353-OGZX
  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Yellow Front Ring, Blank Rear Sight, GLK-001-330-353-YGZX , MPN: GLK-001-330-353-YGZX , UPC: 810116038015 , Code: 32J-AP-NRSL-GLK-001-330-353-YGZX
  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Orange Front, Black, GLK-001-330-353-OGZG , MPN: GLK-001-330-353-OGZG , UPC: 810116037971 , Code: 32J-AP-NRSL-GLK-001-330-353-OGZG
  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Black Front, Black, GLK-001-330-353-ZGZG , MPN: GLK-001-330-353-ZGZG , UPC: 810116037995 , Code: 32J-AP-NRSL-GLK-001-330-353-ZGZG
  • Night Fision Optics Ready Stealth Lower 1/3rd Night Sight Set, Glock 17/19/34 w/ RMR/507c/SRO/ACRO, Yellow Front, Black, GLK-001-330-353-YGZG , MPN: GLK-001-330-353-YGZG , UPC: 810116037988 , Code: 32J-AP-NRSL-GLK-001-330-353-YGZG
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