my club was founded in 1903.
back in the late 1970's or early 1980's, they built a new building (i'd have to check the full back story on dates) and they got either a loan or grant, from the NRA, with an agreement in the contract that all members be an NRA member.....plus, the club gets an insurance discount as well.
if it was a loan, that's been long ago paid off, but to keep the insurance rates low, they keep the NRA requirement.
grants, don't get paid back, as we know...i just cannot recall how the club got the money from the NRA, loan or grant.