The little I know of this issue came from a webinar hosted by a large national law firm last week. The short of it was the Department of Homeland Security CISA memo was merely guidance that states could follow or not. The states generally retain authority over health and safety matters. A law...
I would be surprised if any keep AR-10 complete uppers in stock. Given the differences between Armalite and DPMS AR-10s and the limited market in MA for AR-10s I'm not sure how a dealer would make money stocking them.
I've sent a Sig back to them for repair. They sent a Fedex label and RMA number. I shipped to them by dropping off at a Fedex Kinkos. Once the work was done they shipped it back direct I wasn't home when the FedEx guy arrived so I drove to the FedEx pickup location and brought it home. This was...