Was kinda curious, the bolt that locks in the barrel extension is a big reason why ARs shoot so well, has anyone ever thought about why a guy couldnt put an AR bolt head on a say remington bolt and machine the action to accept a barrel extension? Some guys already put savage bolt heads on remington bolt bodies...whats feasible and what isnt? I am guessing it would mean a very short bolt throw 30 degrees or so, right? Just very curious..