I think the vet said he was 300g the last time I was there. I'm going to have her weigh him again on Monday to make sure. I just remember that he was itty bitty, and there was a 3 in it.
He's put on weight since I got him, though. He had loose skin when he first arrived, and its tightening up now. Slowly but surely. I really need to get my own scale...