Here’s an interesting product coming from 10-8. The Glock Sight in Tool takes into account the minor variations in Glock front sights and assist the shooter in determining the proper front sight to purchase. The kit comes with a nylon sight blade, a set screw and some sand paper.
Install the sight blade and fire a test group. File down the blade to increase the elevation of your shot group. Once you’ve reached the desired point of impact, remove the blade and now you know what height of sight to order for your pistol.