Check out Shotgun Low-poly 3D model on CGTrader for $2. High-quality mesh by nasser-azzeh97: 17999 polys, 16000 vertices. Rigged, PBR, Textured.
FBX (Autodesk FBX, filesize: 191 MB), PNG (PNG, filesize: 191 MB), TEXTURES (Textures, filesize: 191 MB), OTHER (Other, filesize: 82 MB)