(j) the following: (k) Prohibition on destruction of records relating to firearm transfer before completion of related background check The system established under this section may not destroy any records of the system relating to a proposed or completed firearm transfer, before completion of the criminal background check with respect to the prospective or actual transferee. . 3. Annual reports on default firearm transfers (a) In general Within 120 days after the date of the enactment of this Act and annually thereafter, the Director of the Federal Bureau of Investigation shall make accessible to the public a written report on— (1) the number of firearms transferred as described in section 922(t)(7) of title 18, United States Code, during the period covered by the report