Field Medic,
I think the A2 is actually lighter than most collapsible stocks.
Or at least the CAA CBST or Magpul ACS stocks I have. If
you want to change balance, the Magpul ACS has plenty of
compartments where batteries or spare rounds can be loaded
to weigh the stock end down. On most 16" to 18" HBAR barrels,
with flash hiders, I don't find front heavy feels. I do have
light weight free float tubes, or light weight quad rail fore
ends, with light railed gas blocks. On my RRA 20" target
upper...well that is the definition of front heavy. For that I
would probably need a lead filled stock!
Squeeze