Glock holsters compatible with G17,G19,G34,G45

Glock holsters compatible with G17,G19,G34,G45

use these for setting the proper tension
Stainless Steel Low-Profile Binding Barrels and Screws
https://www.mcmaster.com/products/chicago-screws/stainless-steel-low-profile-binding-barrels-and-screws/barrel-length~3-8/barrel-length~1-2/barrel-length~0-5/