Oregon Trail came out with a nub mod for Safariland ALS holsters. If you want something bigger than the default setting on the holster, this might be it.
https://www.youtube.com/watch?v=uIAnL6xWcZM
Link: http://www.otdefense.com/nub-mod-for-als-.html
Price: $32.95
From: Oregon Trail Defense via Soldier Systems
