I used to bow hunt for carp and they are pretty tough. Heavy duty frog gig might work but I would probably upgrade to a true fish gig with the heavier forks. I like these http://www.sbtoutdoors.com/fish_spears.htm and only other advice is learn how to sharpen the points. My frog gig is a SS version and bent it a few times taking carp because they kept banging the canoe.