Safariland, 6365, ALS/SLS, Level 3 Retention Duty Holster ...
In my humble opinion, the Safariland 6365 SLS ALS Level III retention low ride duty holster is the king of the hill among duty holsters of its kind. It's lightweight, fast, secure, easy to use and looks good. The one I got was designed for the full size Glock 17 and 22 pistols but it also takes the compact Glock 19/23 without problems.