Much sense it makes master Yoda.As well as a muzzle brake. Look at an adjustable gas block. When you look at the recoil cycle, cutting down the amount of gas throwing everything backwards is an important step in keeping your front sight on target.
An unregulated gas block throws everything backwards and everything works. But just how much gas do you actually need to just barely cycle the bolt? Plus a hair more to make sure it stays locked open on the last round.
Without the buffer slamming the spring fully compressed and all those additional forces working against your shoulder. Its a whole lot easier to keep the business end where you like it.
