Check out Modular Melee - All Weapons Pack Low-poly 3D model on CGTrader for $10. High-quality mesh by coract: 800 polys, 800 vertices. Textured, UV Mapped.
LWO (Lightwave, filesize: 613 MB), FBX (Autodesk FBX, filesize: 374 MB), SPP (Substance Painter, filesize: 613 MB), UNITYPACKAGE (Unity 3D, filesize: 371 MB)