HOW DOES RARE BREED TRIGGER WORK NO FURTHER A MYSTERY

Undecided what bolt bounce is as I am not experienced with whole-autos and haven't shot 1.  On the other hand, aside from the several buffer it seems like I would need to mess Along with the fuel tube to have it to operate proper if going through an issue.  That straightforward to do or does it acquire any Unique devices? They need a lot of clic