In firearms terminology, the receiver is the part of a firearm that houses the operating parts.
DARPA has been funding the META project (at about $49-75 million per year).
The META effort will also explore the initial design of a next generation ground vehicle by employing a novel, model-based correct-by-construction design capability, a highly-adaptable foundry-style manufacturing capability, and crowd-sourcing methods to demonstrate 5x-10x compression in the timeline necessary to build an infantry fighting vehicle.
DARPA is working on a relatively compact instant foundry that could be placed near front lines and easily fits on military bases or on aircraft carriers.
In 2011, Southampton university printed a UAV plane.
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