Defense Distributed, a group run primarily by gunsmith Cody Wilson, has released a video of an AR-15 with a 3D-printed lower receiver firing off over 600 rounds, a unique feat in the realm of 3D-printed parts. The part, called the AR Lower V5, worked nearly perfectly while firing 600 rounds and, as Wilson notes, "the test ended when we ran out of ammunition, but this lower could easily withstand 1,000 rounds." Source: http://feedproxy.google.com/~r/Techcrunch/~3/B-dq0wqBXBs/
