I wanted to find a way of building a gun with a true horizontal mag, wherein the rounds are held perpendicular to the magazine (think p90) The output of that is this, with the core mech very closely resembling the mech I posted before posting this. If you want to see how it works check the text in the pictures.
If anyone wants me to I'll post more and elaborate on building it, but as is I think it can be pretty easily built just by those external pics (stock and handle from my DBAR), internal pics of my mech (even more in the comments there!) and some personalized customization
Range: about 25 ft with two really old (had to tie between breaks) size 16 bands, and the green ammo (can manually fire any size rod just by pulling back bolt and setting it in. hoping to get more bands today to try another test
Looks: really crappy but maybe cool to someone else
Ergenomics: handle connection isn't comfortable at all but front handle and stock are really dreamy to hold
Everything else: this is basically a concept, I wouldn't bring it in its current state to any war or anything, just a cool (loud and intimidating to cock) sidearm thing with the stock lopped off... think a bolt action spaz-12 with no stock and completely different internals