Actually that's an M60 at the bottom - AUGMAN's in fact.
It's not heavy at all, no more than a pound since it's a hollow tube. I have another six of them sitting in my office in Yokohama, now I just need to wait till I get back to bring them back.
During the last WestCan game in Edmonton again I brought out a few special 'bayonettes', a couple of which I had cut down to 'quarters'. They made good grenades. During a (pitiful) night raid on the allies (yet again), I -STILL- have yet to find who it was got nailed in the head with the dildo I threw. Anyone going to claim that one yet?