You can give them your new FOID #, but chances are you'll have to wait till you receive the physical card to receive the rifle. Based on what I've read in the past, "crappy" situation to be stuck in. I've been waiting 7 days so far, for my CCL to arrive. Went ACTIVE on the 15th. Card arrival times seem to be all over the board, just like the approvals. More so the FOID cards. Some receive their CCL first.