It’s a 5561. You can tell about a barrel bulge, Blake, gray gas block, ventilated hand guard markings on the receiver and the 551 magazine release…
If I had to guess it was an older import, just to get a 551 lower is around $2000
All for it but won’t hold my breath!!!
I don’t think this will do anything for universal back ground check.. from what article states is it will still go through the same background check for sbr just won’t be required to pay the $200 tax stamp fee