Knex Assault Rifle (with Detachable Mag) By matsermetsuiker in LivingLEGO & K'NEX5,30114Save PDFFavoriteIntroduction: Knex Assault Rifle (with Detachable Mag)By matsermetsuikerFollow More by the author: About: nothing special just ╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗ ║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣ ╠╗║╚╝║║╠╗║╚╣║║║║║═╣ ╚═╩══╩═╩═╩═╩╝╚╩═╩═╝ More About matsermetsuiker » my new knex assault rifle. the mag was based on big z mag