Autodesk 3ds Max (.max) Version: 2018 Renderer: V-Ray 3.6
Steel parts are blended with V-Ray blend material for a dusty surface. So you may change blending amount to make it look much more older easily. I also added 2016 and 2013 max file. all is archived and ready to use. hope you enjoy it.
including: 2018 max archive 2016-2013 max archive parts seperated in material order (.fbx) whole cannon (.obj) parts seperated in material order (.obj) vray blend (.mat) standart material (.mat) vray material (.mat)