I had a C&R License (FFL 03) for around twenty years off and on back in the “golden era” when you could find plenty of German and Yugo Mausers, Lee- Enfields, Mosin-Nagants, Swiss K-31’s and Norinco and Russian SKS’s all for very reasonable prices.
It was a great way to learn about firearms, improve your gusnmithing skill-set (I taught myself how to repair Mausers this way) and amass a nice “collection” of very usable military weaponry including pistols and revolvers.
One of the many perks of having a C&R License is you get the weapon delivered directly to your home without the need of a Gun Dealer as a middleman. I cannot tell you the excitement of seeing the Big Brown Truck of Joy come rumbling up the road!