Was just about to mention the weights as there are a few serious heavyweights in that line up but then I just got waylaid
So, if you're wondering where the white SM 158 just went
Cheers for sharing Glorificus and cheeers for the link Tommo
Shamus.
p.s. besides the weight also check whether the bodies are M16 compatible before rushing into a purchase. I'm assuming that they are but always worth double checking.