True in theory, but doesn't work that well in practice.

It doesn't take long for carbon to build up inside a can and make the baffles tough to remove –– in my experience, sometimes even 100 rounds will jam it up pretty solid. When this happens, you must remove both end caps and push the baffles out; they can't be pulled out.

But if you have one end cap welded to the barrel and to the suppressor tube, you can't normally push out the baffles. They will be in there to stay.

FWIW, I almost never clean my cans anyway. I treat 'em like the muffflers on my cars –– first, because they are about equally difficult to clean, and because (again, just in my experience) the initial carbon deposits actually make the suppressor more effective ... and except for .22RF cans, it takes tens of thousands of rounds fired before the can starts to lose effectiveness. If/when they do, a good soaking in Ed's Red followed by compressed air restores things nicely.

But I would not permanently attach a suppressor to a barrel unless there was no legal alternative (like, if I lived in a state where SBRs are banned). Doing so greatly reduces your flexibility, and one of the great things about owning a suppressor is that you can use it on as many host guns as you want (in the right calibers, of course).

As always, Your Mileage May Vary.