TruGlo Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34 TG. A patented light reflector focuses available light from all angles onto the fiber for a brighter glow even in low light conditions Ultra-bright fiber-optic front sight for fast acquisitionPatented light reflector designBlacked out rear sight for increased contrastSerrated sight faces reduce glareIncludes spare fibers and reflector tapeFits standard holstersMost fiber-optic sights gather light from the top and somewhat from the sides. A patented light reflector in TRUGLO Fiber-Optic PRO sights redirects light onto the entire surface area of the fiberTraditionally the best way to make a fiber-optic brighter has been to make it longer; however this decreases the sight radius. The reflector design allows light exposure on 360 of the fiber-making it brighter without needing to make the fiber longer.Due to gun manufacturers? machining tolerances point-of-impact may differ slightly. Specifications for Truglo Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34 TG132G1: Manufacturer: TruGlo Gun Make: Glock Gun Model: Glock 26 Glock 34 Glock 22 Glock 24 Glock 17 Glock 17L Glock 33 Glock 23 Glock 27 Glock 19 Color: Black Red Steel Rear Sight Color: Green Gun Type: Pistol Country of Origin: USA Package Contents: Truglo Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34 TG132G1 What firearm models does the manufacturer say Truglo Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34 TG132G1 is compatible with? The manufacturer says that Truglo Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34 TG132G1 is compatible with Glock 19 Glock 23 Glock 26 Glock 27 Glock 33 Glock 17 Glock 17L Glock 22 Glock 24 Glock 34TruGlo TG-TG132G1: Brite-Site Fiber Optic Low Set Fits Glock 17/17L/19/22/23/24/26/27/33/34