Looking for a holster that will accomodate my G17 with a Streamlight M3 weapon mounted light . I would prefer a drop leg holster as I find it hard to access a belt holster with my Tac vest on .
+1 for the Safariland with a light. My glock 21 has been on my hip for days on end with my X300 on it and I love it. The straps have a rubber like material on the inside so the straps don't shift and it fits like a glove. I wore it for a week 16 hours a day while teaching my last course and it performed flawlessly while running and driving around in a truck.
Safariland 6004, hands down for a drop-leg holster system...I've used BladeTech, Mad Dog and Safailand at work and have found that Safarilands work best for me. Remember to maintain it, just like any other piece of equipment. I've seen them fail, due to lack of maintenance.
I believe the ALS has an extra safety mechanism that "locks" the weapon in place in the holster while the hood is open. By looking on Safarilands website it appears that there is another little lever in between the hood and the holster itself that needs to be manipulated to draw your weaponn.
The SLS is just the hooded holster, place weapon in holster, close hood and it snaps shut.
I use the SLS with a hood guard on my duty belt and I love it. I carry a G22 with a TLR1 weapon light.
I also use an SLS drop leg holster when carrying a taser.
Go with the Safariland. They have everything you could think of - but they are relatively expensive (worth it IMHO). Our PD issues 6360s and 6365s (1.5" drop) now for our G31/TLR combo. Took a bit to get used to the holseter, but dig it now.