Brawl got to appear without the other Combaticons in the 1st Bay movie...well, unless you count Blackout as Vortex, considering Brawl was called Devastator.  But then he became a combiner limb in the sequel, sort of like in the WFC and FOC games. 

Point is, in all that confusion, your ROTF or Energon Brawl may have lost his HFG.  If so, here it is.

Bought second-hand.  Looks like it just came out of the package. 

If you'd like more pics or info, please ask before bidding. 

I'm always finding more Transformers, action figures, dolls,comics, cards, and other strange, off-brand collectibles, so please keep checking back, and don't hesitate to ask about combined shipping!