Check out 7 62x39 Cartridge 3D model on CGTrader for $25. High-quality mesh by Plutonius3d: 11122 polys, 5567 vertices. PBR, UV Mapped.
OBJ (OBJ, filesize: 136 KB), FBX (Autodesk FBX, filesize: 1.15 MB), UNITYPACKAGE (Unity 3D, filesize: 639 KB), MAX (Autodesk 3ds Max, filesize: 587 KB), 3DS (3D Studio, filesize: 139 KB)