So to start off I could not, for the life of me, find reviews that this holster worked with the 19x or any gen 5's. Safariland and holster ops adamently said it would not work at all, and make you agree that you acknowledge that and that they will not accept returns of that nature. But I took a whim of a chance to try it out and what do you know, works like a charm. One of my most expensive holster but dam it feels good, excellent retention and has a nice draw with a natural release mechanism has maybe a 1/16" wiggle not even hardly mentionable. The safariland 6354do 100% works with the 19x w/ tlr1hl. I am sending it off to have an rmr placed and I will be expecting to have to modify the holster afterwards as I want the rmr infront if my rear sight. I'm currently running an aws belt with kwyi triple gap pistol mag pouch and have a dual 7.62 on the way. So far this belt works great, I've worn it all day with no complaint if soreness or having it sag down.