Been looking can't find it. I searched Section 924 also.
This is all I found in 924...
18 U.S.C. § 922 : US Code - Section 922: Unlawful acts
(a) It shall be unlawful -
(3) for any person, other than a licensed importer, licensed
manufacturer, licensed dealer, or licensed collector to transport
into or receive in the State where he resides (or if the person
is a corporation or other business entity, the State where it
maintains a place of business) any firearm purchased or otherwise
obtained by such person outside that State, except that this
paragraph (A) shall not preclude any person who lawfully acquires
a firearm by bequest or intestate succession in a State other
than his State of residence from transporting the firearm into or
receiving it in that State, if it is lawful for such person to
purchase or possess such firearm in that State, (B) shall not
apply to the transportation or receipt of a firearm obtained in
conformity with subsection (b)(3) of this section, and (C) shall
not apply to the transportation of any firearm acquired in any
State prior to the effective date of this chapter;
This is all I found in 924...
(C) any offense described in section 922(a)(1), 922(a)(3),
922(a)(5), or 922(b)(3) of this title, where the firearm or
ammunition intended to be used in any such offense is involved in
a pattern of activities which includes a violation of any offense
described in section 922(a)(1), 922(a)(3), 922(a)(5), or
922(b)(3) of this title;