NRA endorsed The Donald yesterday. From what I have seen gun owners are not jumping for joy over the choice between him and Hillary.
Trump’s record on guns can at best be called mixed. NRA is making Justice Scalia’s replacement the issue and pitched him as being more likely to nominate pro-gun justices to SCOTUS than Hillary. That is a hard sell and given Trump’s past political history is very much debatable.
It won’t matter much here in New York anyway. With the Democrats 2-1 enrollment advantage Hillary should easily win the state.