Never got weapon from Chesty.

[El Mosqueton]

That damned chest!

I finished his quest and solved the mirror puzzle, but there's no chest or weapons to be found, what do?

 

[DCxValkyrial]

i got mine from a chest inside the mansion, after u finish the mirror game and youre inside the actually mansion theres a locked door inside the room before entering the door theres a note on a table saying something about shooting. in the other corner on the same side of the room theres a green orb shoot it with your gun and it opens the door that was previously locked, go in and open your chest for the legendary.