This light uses the large size GEN 2 iwb holster which also fits optics is ambidextrous and comfortable. Ask questions if not sure about fitment with firearms since holster is universal some firearms will fit more snug than others due to factors like suppressor height sights and other factors. Always test holster fitment with gun UNLOADED. ALL SALES FINAL. But we're willing to work with customers. Visit crtacticaldefense youtube for videos and more. Thanks