The main purpose of this legislation is to eliminate the firearm transfer tax, which is a tax imposed on the transfer of certain firearms. The bill aims to simplify the process of buying and selling firearms by removing this financial barrier. Key provisions of the legislation include the repeal of the firearm transfer tax as outlined in the Internal Revenue Code. This means that individuals will no longer have to pay a tax when transferring ownership of certain firearms. Additionally, the bill includes amendments to other sections of the tax code to ensure consistency following the repeal.