Check out Brick stone wall block many n1 3D model on CGTrader for $9. High-quality Polygon mesh mesh by 3d-vlad: 1100000 polys, 630000 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 164 MB), MAX (Autodesk 3ds Max, filesize: 329 MB), FBX (Autodesk FBX, filesize: 164 MB), 3DS (3D Studio, filesize: 164 MB)