Explosive Enterpises shows the customised shell-ejecting HPA-powered SPAS-12 airsoft shotgun based on the Maruzen M1100... "A custom project that began eleven years ago, splicing the internals of an airsoft Maruzen M1100 to the externals of a Tokyo Marui SPAS-12, with a few donor parts from other manufacturers. HPA-powered, shell-ejecting, 9-BBs-per-shot, one of a kind."