Check out Sten Submachine gun Low-poly 3D model on CGTrader for $50. High-quality Polygon mesh mesh by pasquill3d: 8889 polys. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 1.22 MB), FBX (Autodesk FBX, filesize: 28.9 MB), 3DS (3D Studio, filesize: 440 KB), BLEND (Blender, filesize: 1.83 MB)