Why not?phaedra1106 wrote: you're not supposed to enter anything onto your own SGC or FAC.
As the importer of several firearms for which I had authority to acquire on my FAC (I wasn't an RFD way back then), it was my responsibility (not customs nor anyone else) to enter it on to my FAC and inform the licensing department when the firearms arrived.
Can't see why you cannot do it yourself, just ask the FLO how they would like you to proceed licensing wise. Just be careful if you try to sell it, you may need to get it re-proofed first.