The XST Series of holsters takes all the positives from the OSH Series—Heavy Use, Precision Formed, Modular Kydex Holster featuring a fold/wrap design with Adjustable Pro-Safe Tensioning—while adding a second level of retention. The second level of retention is added with an Over the Top, Power Assisted, Retention Canopy. Built for combat, and ready to take a beating. Has ample sight clearance for night sights and raised suppressor sights. Open front design allows for extended threaded barrels.