Many people think that AR, in gun terms, means assault or automatic rifle. This is not what it stands for, however. The AR 15 rifle stands for ArmaLite rifle. It has been around since the 1950s and ...
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Ar15.com user [HaveBlue] has been working for some time on a 3D printed lower receiver, and now reports that the parts are fully working. Using a Stratasys 3D printer from the 90’s [HaveBlue] managed ...