$10 LGF1 Mortar Low-poly 3D model by andreapeza. Available on CGTrader with 5562 polys and 5570 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 885 KB), MAX (Autodesk 3ds Max, filesize: 4.17 MB), SPP (Substance Painter, filesize: 224 MB), FBX (Autodesk FBX, filesize: 363 KB), TEXTURES (Textures, filesize: 32.6 MB)