http://pjmedia.com/tatler/2013/03/19/magpul-to-colorado-were-outta-here/
You’re behind the power curve, already a few threads discussing this.
It shouldn’t come as a surprise to anyone as he’s said multiple times that he will sign it. The only reason he didn’t do it immediately is so he can pretend like he did his due diligence and actually thought long and hard about the issue.