Check out 3 coatings of USA ARMY M270 Multiple Launch Rocket System MLRS Low-poly 3D model on CGTrader for $29. High-quality mesh by ShuyangXi: 33987 polys, 35714 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 820 KB), FBX (Autodesk FBX, filesize: 1.78 MB), MAX (Autodesk 3ds Max, filesize: 391 MB), TEXTURES (Textures, filesize: 391 MB), 3DS (3D Studio, filesize: 794 KB), SPP (Substance Painter, filesize: 480 MB)