Posted by barnbwt:
Printed AR mag with working printed spring--5 round mag IIRC.
IRCC? Does that mean you haven't seen it? You haven't seen it work?
Do you have pics of an actual working firearm using printed springs?
I can make a "spring" by coiling up a strip of cardboard. That doesn't make it useful as a gun spring.
And that spinning thing doesn't have anywhere near the close tolerances needed in a working gun.
Printed guns are currently fiction. Maybe someday, in fact I'd invest money in a company that I thought could do it. But no one has done it yet.