Last year there was a program you could sign up for where you could keep going until you got rifleman. I read it has been discontinued. Unless you already signed up for it, you can't now.
If you purchased the Rifleman Opportunity Card less than a year ago and have not earned a patch yet, it is still valid. It was a promotional offer that was available for a limited time. Old ROCs are still honored as long as they haven't expired. If you have one, sign up under one of the free options and make sure to bring your ROC.