i have both mad kats crappy ones and the really nice interact ones, i found them all at gamstop for like 15$ each. im dying to try those mini bio guns though they look nice, liksang is a great place to order stuff from hong kong, and shippign should be too much for thse little guns..
that silent scope capabilty is a lie, its a small dpad o nthe but of the gun, lame ploy to sell more guns. the whole scope thing is hte reason sega didnt usea gun for silent scope, that and columbine.....