Okay, so I know that the SPIW program from the Vietnam War majorly sucked, and I know the basic idea and history of the things. What I'm looking for is actual technical info on the weapons themselves. Ordinary pictures help too, and I could only find two pics on Google. Yes, I know they sucked, but actually I'm more interested in info on the grenade launcher systems developed for them. If anyone has any info on or pictures of these weapons, it would be much appreciated. 