I can't find it on their websiteThere is a hack for that. If you take a knife and cut the plastic away from your charging handle...you'll find a stock, round charging handle.
Kel Tec uses a round, metal charging handle as the base when injection molding the square handle.
Or go to the Kel Tec website and order a round one.
Yea im not looking to cut anything away. Just looking for oneI decided that the best option is actually a hybrid. I cut away some of the plastic of the "new" handle, so it has a shape resembling an AK handle, but retains the case deflector. This way it continues to work like the "new" handle, but allows to grab it even easier than the original round handle.