$2 Double Barrel Low-poly 3D model by AliJandaghi. Available on CGTrader with 2300 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 312 KB), ABC (Alembic, filesize: 262 KB), BLEND (Blender, filesize: 1.24 MB), DAE (Collada, filesize: 633 KB), FBX (Autodesk FBX, filesize: 203 KB), GLTF (glTF, filesize: 6.43 MB), TEXTURES (Textures, filesize: 5.53 MB), SPP (Substance Painter, filesize: 31.2 MB)