Green / green fiber optic sight set for Glock small-frame pistols - Glock 17, 19, 22, 23, 26, 27, 34, 35 and similar small-frame models. Fiber optic illumination delivers fast daylight target acquisition; the matched green dots give you a consistent visual reference. Specs: Reticle: 3-dot fiber optic (green front, green rear) Compatibility: Glock small-frame (G17/19/22/23/26/27/34/35 + similar) Drop-in fit using standard Glock sight cuts Why fiber optic: In bright daylight, fiber optic dots gather and concentrate ambient light, making them dramatically brighter than plain three-dot sights. Trade-off: fiber optic doesn't work in true darkness (no light to gather) - for night use, choose tritium or fiber-optic + tritium hybrid sights. GLOCK is a federally registered trademark of Glock, Inc. and is one of many trademarks owned by Glock, Inc. or Glock Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, Glock, Inc. or Glock Ges.m.b.H. The use of "Glock" on this page is merely to advertise the sale of Glock pistols, parts, or components. For genuine Glock, Inc. and Glock Ges.m.b.H products, visit https://us.glock.com .