Originally Posted by
Paul_1982
“ Or at a place authorized by the chief firearms officer”
Exactly. The restricted FX-9 you just put together is not registered to you, and not covered under your ATT.
You can’t just possess ANY restricted firearm anywhere you want because you have an RPAL and an ATT. The ATT only covers those registered in your name.
If the friendly LEO lets you borrow his pistol, he’s lending it to you under his direct supervision which is covered under a different section of the Act. He’s also not bound by the Firearms Act at all.