This holster is designed for any red dot on the market and has an open bottom that will fit your threaded barrels and compensators. It has a solid locking retention (audible and tactile "click" when securely holstered). It's 100% made in America, by veterans and law enforcement and guaranteed for life! It also has extra tall sight channels to allow for tall suppressor sights. It fits all Glock 43 and 48 models.