Never...EVER...did I buy a new gun without going through a National Instant Criminal Background Check System (NICS).
Back in the day...before it was "instant"...1998 exactly...on the books you had to wait three days...which was more like 5 to 7.
Now...You have to complete a Form 4473, which includes 16 questions relating to your background, drug use, and criminal history. The gun store will then contact NICS online or by phone and supply your Social Security number. Simple...