So I finally have enough to buy an M1 Garand. I plan on looking at the service grade options, unless the field grades look fine. This will be my first Garand. And although I'm not real sure what to look for on the guns, I hear the CMP's grading is very fair, if not favorable to the buyer. But my main question is about qualifying for purchase. My understanding is that you have to be a member of a gun club or something to that effect. Is an NRA membership good enough? What has been your experience with this?