Ok, I just check my P3S and did not notice any chips on the legs at anywhere. I would make the assumption that this is not normal. Have you flown it yet? if so is it possible it got chipped on the landing?
Is it where i circled in red? Cause if so then no it is not normal. (I might be blind but it sure looks like a chunk is missing there), Or is it was is circled in green? If so then that is the way the legs are manufactured.