https://www.keepshooting.com/glock-oem-generation-5-fixed-rear-sight-polymer.html
Glock OEM Gen 5 Fixed Rear Sight - Polymer 6.5mm SP39724 | Factory Replacement | Keep Shooting
Genuine Glock OEM Gen 5 fixed rear sight (SP39724) in 6.5mm polymer. Fits G17, G19, G19X, G26, G34, G45. White outline U-notch, factory dovetail fit, direct...