I'll assume that you did a eForm 1, not the paper version, so 5 months for approval of a eForm 1 is much longer than usual. eForm 1's have been taking around 30-60 days and paper Form 1's and Form 4's are taking 5-6 months now, which is considereably less time than this time a year ago. THERE IS ABSOLUTELY NO REASON TO EVER DO A PAPER FORM ! AGAIN!!! ATF examiners have been working from home since COVID began in March and there have been a slight delay in mailing times. Also, the FBI, who perform the background checks for NFA item, are absolutely buried with applications of people trying to get their toys approved prior to the O'Biden Dementia administration taking charge and trying what to ban first...