I used ‘home manufactured guns’ incorrectly. Thanks for the info.
The NRA didn’t publicly condemn 3d printed guns but they didn’t support it either. So they condemned it by remaining silent on the issue - because laws were passed condemning it while the NRA remained mum.
I stand by my original assessment - If the NRA was a 2nd Amendment lobby instead of the gun manufacturer/sales lobby they’d vocally oppose the knee-jerk laws banning 3d printed guns and the tech-plans involved so early on.