Ah yes I forgot about the clips. The rear coupler used a clip (similar to some Kato ones, but far more difficult to remove and install), and the front just a plastic pin. One thing I'll say is the mounts on my Life-Like models have some play in them, while the Atlas version seem to be much more secure. But I'm not sure if that's just due to wear from disassembly and reassembly on the LL ones vs the Atlas ones being factory new.