It seems that the generation 4 mil figures are an attempt to avoid the commercial catch 22 that comes when a figure is not supported by vendors because it's not popular and not popular because it's not supported. If clothes can be worn by any of the mil family (within reason) the clothes are more likely to sell and the figures will not suffer from any lack of support. Perhaps time and money is saved as well by not having to develop separate rigging--though the way A4’s arms bend suggests that cost saving and consolidation may have its drawbacks.

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