Greatly improved my glock23 gen3 trigger pull. Shot 100rds the first weekend & it is so much better than stock. Had an issue with the trigger safety resetting, so I emailed customer service & they replied within an hour with advice & a pic that solved my install mistake. Quick tip: make sure the trigger spring hook is aligned vertically in the trigger bar slot once installed in gun. My spring moved over to the side during the install, but once I resolved this, everything worked perfectly. You may have to push spring into the slot with a small punch once the trigger is installed if you were having trouble like me. Great product, very helpful & quick customer service. Will probably buy another one soon for my g27!