Can you tell me what transformer this is?

Hi! As my name insinuates, my 3 (almost 4) year old son LOVES Transformers. I was at the Salvation Army and found this Transformer from the 80's, so I picked it up for him. He's obviously missing pieces. I've figured out that he's a constructicon, but I can't figure out which one, because it doesn't look like any of the ones that I find pictures of. Here are the pictures of the TF in question (sorry for the poor quality):


Anyone have any idea who he is so that my son will leave me alone? Haha!


Anyone have any idea who he is so that my son will leave me alone? Haha!
