Gurnz Z .555 Mega BB pistol, looks unused. Has warning sticker. Not sure how this would do with 50 caliber? Might be too big bore. This was a splastmaster clone made by Bob Gurnsey after NSG went bankrupt. Not sure how many of these were made or if serials were consecutive after splatmasters. Could even have been made from stamped Splatmaster left over bodies?