Seems like adding more stress to a gun with a known-weak locking block might not be a good idea?
If somebody was making replacement barrels, I would think they would make locking blocks too. I know the blocks are harder to find than hen's teeth, so I doubt there are barrels.
Not sure how adding a suppressor adds stress to the block, I would think it would reduce since you'd be firing sub-sonic ammo.
But then again I don't even live near a Holiday Inn Express... let alone stay at one.