Definitions

Section 921(a) of title 18, United States Code, is amended by adding at the end the following: (38) The term facilitator means any person engaged in the business of hosting a commercial marketplace in which offers for firearm sales, purchases, or other transfers are allowed to be made, except that such a person shall not be considered to be a facilitator with respect to any transaction that is made through the use of a website or mobile application owned or operated by the person if— (A) the transaction violates the terms of service of the website or mobile application; and (B) the person has made a good faith effort to enforce the terms of service by, at a minimum, auditing firearms transactions on a quarterly basis to ensure compliance with this chapter. (39) The term occasional means, with respect to transactions, fewer than 5 transactions in a 12-month period. (40) The term personal collection includes any firearm obtained only for the personal use of an individual and not for the purpose of selling or trading, except that a firearm obtained through inheritance shall not be considered part of a personal collection until the firearm has been possessed for 1 year. (41) The term business inventory firearm means, with respect to a person, a firearm required by law to be recorded in the acquisition and disposition logs of any firearms business of the person. (42) (A) The term frame means the part of a handgun, or a variant thereof, that provides housing or a structure for the primary energized component designed to hold back the hammer, striker, bolt, or similar component prior to initiation of the firing sequence (such as a sear or the equivalent), even if pins or other attachments are required to connect such component to the housing or structure. (B) The term receiver means the part of a rifle, shotgun, or projectile weapon other than a handgun, or a variant thereof, that provides housing or a structure for the primary component designed to block or seal the breech prior to initiation of the firing sequence (such as a bolt, breechblock, or the equivalent), even if pins or other attachments are required to connect such component to the housing or structure. (C) For purposes of this paragraph, the term variant means a weapon utilizing a similar frame or receiver design irrespective of new or different model designations or configurations, characteristics, features, components, accessories, or attachments. For example, an AK-type firearm with a short stock and a pistol grip is a pistol variant of an AK-type rifle, an AR-type firearm with a short stock and a pistol grip is a pistol variant of an AR-type rifle, and a revolving cylinder shotgun is a shotgun variant of a revolver. (43) The term semiautomatic shotgun means any repeating shotgun that— (A) utilizes a portion of the energy of a firing shell to extract the fired shell casing and chamber the next round; and (B) requires a separate pull of the trigger to fire each shell..