For sale is a Glock 17 Gen 4 with an upgraded Glock Triggers Vogel Trigger and TTI Fiber Optic Sight kit.
The trigger ($149): https://glocktriggers.com/product/vogel/
The sights ($89): https://tarantacticalinnovations.com/tti-ultimate-fiber-optic-sights-set-for-glock/
The gun has very little...