Check out Assault Rifle-V 3D model on CGTrader for $5. High-quality mesh by dengxiart: 89308 polys, 89194 vertices. Textured, UV Mapped.
BLEND (Blender, filesize: 69.2 MB), OBJ (OBJ, filesize: 7.08 MB), FBX (Autodesk FBX, filesize: 8.46 MB), GLTF (glTF, filesize: 52.6 MB), DAE (Collada, filesize: 15.4 MB), TEXTURES (Textures, filesize: 42.5 MB), PNG (PNG, filesize: 42.5 MB)