Maybe I shouldn't tell an HK addict about the P7...

On a slightly cheaper note, check these out if you want to go all John Wick (apparently matching it with the Silencerco barrel with 1/2-28 threading is the way to go for the flush fit) https://www.parkermountainmachine.com/store/p390/PMM_H%26K_VP9_Compensator.html