Heh well this is a first for me and I thought I'd share. Was going to install a set of torque up gears into a friend's TM MP5K when I found this "gem". A clean break (at least on one side) like what you get with version 2 mechboxes...
Well I guess that's what you get when you're running a PDI 170% spring and an aluminum piston head... I have a similar setup in my MP5K so I guess I'll have to get a reinforced version 3 mechbox soon too.