The Tokyo Marui SPAS-12 Shotgun. Uses standard Tokyo Marui shotgun shells (same as the M870, spring style, UTG, etc) and shoots 3 BBs per pump/shot with its 3 barrel design. Shells holds 30 rounds each = 10 shots per shell. All plastic, yet durable and made to last. Tokyo Marui makes some of the highest quality guns in the world, with this being one of them. *However, there's one quirk with Marui spring shotguns, in that you cannot double-pump and then pull the trigger. There's a chance a BB may slip loose and damage the internal mechanism. So play it safe and one-pump, then shoot. Don't double pump and shoot.