Unlikely that this is out there.
This would require an animation for each weapon there is, in all 4 directions
As far as ping is concerned its possible ofc. you can chamber and attack now, so if you change the animation a bit that wont change.
You might have forgotten though, a chamber can be held and you can attack a bit later, that requires 2 animations, 1 for the chamberblock, and 1 for the following attack from the chamberblockposition