bore The term rifled bore means, with respect to a firearm, that the firearm is designed or made to spin a fired projectile. (5) Firearm The term firearm has the meaning given the term in section 921(a)(3) of title 18, United States Code. (c) Penalties Whoever knowingly violates subsection (a) shall be subject to the penalties provided for in section 924(a)(1) of title 18, United States Code. (d) Presidential waiver The President of the United States may extend the moratorium established by subsection (a) until the earlier of— (1) 30 days after the date of the submission of the report required by section 4