Check out XM8 gun Free low-poly 3D model on CGTrader for free. High-quality mesh by AbhaySinghchawari: 10234 polys, 10274 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 1.39 MB), BLEND (Blender, filesize: 2.2 MB), FBX (Autodesk FBX, filesize: 589 KB), TEXTURES (Textures, filesize: 49.2 MB)