Legislation has been introduced to limit the SAFE Act to New York City:
First and foremost, it would require Governor Cuomo to sign it thereby admitting he was wrong. That is never going to happen especially considering he still has delusions of running for President in 2020.
Second, the Republicans are treating guns as a partisan, ideological issue, not a civil right. With Republicans and Conservatives making up ~25% of registered voters, and Democrats making up roughly 53%, they cannot pass legislation without buy-in from the Democrats. They do not have that.