Originally Posted by robocop10mm
I'm sure the ATF would frown on the non permanent aspect of your permanently attached Vortex. If it is readily removeable, you got yourself an SBR.
If you were to "permanently" attach the papered can to the under 16" bbl you would be legal again, but then there is that maintenance thing.
Yeah, I am pondering that first part myself. Permanently attached means just that. By BATFE standards that means welded. Not pinned. Not epoxied. Not silver soldered. If the Vortex is, by definition, "permanently attached", removing it would make an SBR. I think Glock Holiday offered the easiest solution.