HAHA, he wanted to know as I was selling an SA stamped receiver.
For reference to anyone.
Removing the gas block is easy, just punch out that little rectangular key.
The rear sight is easy, just tap out s small pin and tap the sight assembly off.
Breaking the barrel free took considerable effort. And that was with a pipe wrench. (the barrel was bad)
Not sure how hard it would be to index the barrel again. Could be tough. Probably not terrible with a pipe wrench but it would mark the barrel. But that would be hidden under the wood when reassembled. Just dont use the sight base portion to put your wrench.