Raven Concealment Gear released Perun holsters that can accommodate weapon lights. Currently, these are available for Glock 17, 19, 34, with SureFire X-300U/B light. More models are on the way.
http://rcsgear.com/products.php?product=Perun-OWB-Holster-Glock-with-Surefire-X300UPrice: $49.99
For more photos, you can check out Soldier Systems Daily
http://soldiersystems.net/2018/05/07/raven-concealment-systems-perun-lc-holster/From: RCS, SSD