Check out Mauser Tankgewehr T Gewehr M1918 Anti Tank Rifle Low-poly PBR Low-poly 3D model on CGTrader for $34. High-quality mesh by we3d1234: 19398 polys, 10219 vertices. PBR, Textured, UV Mapped.
MAX (Autodesk 3ds Max, filesize: 176 MB), BLEND (Blender, filesize: 88 MB), OBJ (OBJ, filesize: 88 MB), FBX (Autodesk FBX, filesize: 88 MB), MAX (Autodesk 3ds Max, filesize: 176 MB), GLTF (glTF, filesize: 88 MB), 3DS (3D Studio, filesize: 88 MB), TBSCENE (Marmoset Toolbag, filesize: 88 MB), TEXTURES (Textures, filesize: 88 MB), PNG (PNG, filesize: 88 MB)