Stylized Musket Low-poly Low-poly 3D model is available on CGTrader for $12. Original author: olegsolyanik89. Specs: 3600 polys, 3500 verts.
BLEND (Blender, filesize: 13.5 MB), OBJ (OBJ, filesize: 572 KB), FBX (Autodesk FBX, filesize: 522 KB), GLTF (glTF, filesize: 12.2 MB)