A Fed check is required in every state if the sale is through a licensed dealer though no?
The NICS conducts background checks on people who want to own a firearm or explosive, as required by law.
NICS ServicesNICS provides full service to the FFLs in 31 states, five U.S. territories, and the District of Columbia. The NICS provides partial service to six states. The remaining 13 states perform their own checks through the NICS.