Ok, fine. But, how is it a blind pin when he knows exactly where it is and can use a drill for 2 seconds to remove it? MAPP torches and 2 minutes of chopping and grinding with a dremel are enough to de-ban any rifle. Since any rifle can be SBR'd illegally with a hacksaw by hand, that has no relevance. It's VERY VERY VERY easy to make one illegally using a hacksaw, a dremel, a drill, a torch etc., but it's still illegal. Even more illegal and STUPID is trying to build one from scratch thinking that it's okay to install a small pin.
With Bushmaster- they covered their butts by BLIND pinning the brakes on. You had to SEARCH for the pin, even though it didn't take much time, and then grind it out. Pinning it yourself and keeping it after the build is not "BLIND" in any way.
I'm not going to say no more but I would REALLY suggest finding out for sure. I don't have to prove anything. I'm not the one walking a thin line.
You guys sure as hell aren't as responsible as the AR15 side of the board, that's for sure.
ETA: that was a receiver the minute it was folded or riveted and it was unregistered as an SBR whether the stock was installed or "sitting" where it will be attached later. You can't prove from those photos that that receiver has not been cut to accept that stock yet. Innocent until proven guilty doesn't work with weapons like these today...