Love this comp for my gen 5 glock 19 - Killer Innovations Velocity Glock 17/19 Gen 5 Barrel Compensator

It’s a game changer with the velocity threaded barrel and 13lb spring you can buy at killer innovations site (never tried with oem spring because of disclaimers). Initially I had some jamming problems on reload I realized was related to my left thumb creeping up on the slide while firing. Once I realized that I’ve had zero issues and the reduced muzzle rise is very substantial. It shoots like butter and you can stack shots in the same spot effortlessly without having to refocus. Game changer for sure!