You guys shouldent be so hard on these. These were way before the modern electro cockers. This gun is certainly to be collected by sombody interested in paintball history not performance.
We used to call these Sandwhich cockers. I remeber the first time I saw one of these in the flesh (about 98 I think?). We were awstruck at the fury of paint that thing could release. The only competitors were shoebox shockers and LED angels.
It looks silly today, but was a marvel in its day.