Let's say someone bought a Glock in MA in May or June of 2004 during that short window when they were thought to be in compliance with the AG regulations. Let's also say that that individual chose (legally, I think) not to return the Glock as requested, when the AG ruled that Glocks did not, in fact comply with the double secret requirements. Can this firearm be transferred via an FFL legally or must any transfer be done via FA-10?