a guy in a leather jacket and jeans, with a shaven head and a knuckle-duster一个剃着光头, 身穿皮夹克、牛仔裤, 戴着指节金属套的家伙

As well as firearms, police confiscated knuckle-dusters and other weaponry.除了枪械, 警察还没收了些指节金属套和其他器械。