MP5k-PDW BB gun. Shoots 4.5mm steel BBs and takes a carbon dioxide cannister. Has a 40 round clip, detachable fold out stock, blow back action, tactical rail, removable muzzle guard. Shoots at about 450fps. Near brand new, fully functional, only problem is that one of the screws for the tactical rail has broken off, but doesn't really effect much. Buyer must be 18 or over unless they have a gun license. Doesn't come with a manual.