Check out Arbiter 556 Revolver Low-poly 3D model on CGTrader for $12. High-quality mesh by Akinaro: 15296 polys, 8057 vertices. Rigged, PBR, Textured.
OBJ (OBJ, filesize: 72.1 MB), FBX (Autodesk FBX, filesize: 72.3 MB), DAE (Collada, filesize: 73.3 MB), TEXTURES (Textures, filesize: 71.1 MB), JPG (JPG, filesize: 71.1 MB), PNG (PNG, filesize: 71.1 MB), GLTF (glTF, filesize: 54.9 MB)