Check out Rifle Low-poly 3D model shop 3D model on CGTrader for $8. High-quality mesh by Futuredesignscop: 86588 polys, 173123 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 129 MB), FBX (Autodesk FBX, filesize: 129 MB), MA (Autodesk Maya, filesize: 64.4 MB), PNG (PNG, filesize: 64.4 MB), GLTF (glTF, filesize: 49.9 MB)