NY A11339

Requires persons assembling or manufacturing firearms to apply to the New York Division of State Police for a unique serial number before construction, with applicants needing to be 18+, pass a background check, hold a valid firearm license, and prove compliance with all applicable laws.

Mandates that serial numbers be engraved or permanently affixed to homemade firearms within one day of assembly, with the owner notifying state police of completion in a manner specified by the division.

Establishes a $350 processing fee for serial number applications, with 70% deposited into a "dealers' record of sale account" for state police operating expenses and 30% deposited into a "gun violence family relief fund."

Prohibits the sale or transfer of homemade firearms and criminalizes assisting prohibited persons in firearm assembly, with penalties of up to 6 months imprisonment or $1,000 fine (or up to 1 year for assault weapons).

Creates the gun violence family relief fund to provide housing, education, nutrition assistance, and grief therapy or legal fees to families of gun violence victims, with annual reporting requirements to state leadership and the public.