Nothing in sections 53-202a to 53-202k, inclusive, shall be construed to prohibit a federally-licensed firearm manufacturer engaged in the business of manufacturing assault weapons in this state from (1) manufacturing or transporting assault weapons in this state for sale within this state in accordance with subdivision (1) of subsection (b) of § 53-202b or for sale outside this state, or (2) transporting and temporarily transferring assault weapons to and from a third party for the sole purpose of permitting the third party to perform a function in the manufacturing production process.