receiver means the part of a rifle, shotgun, or projectile weapon other than a handgun, or variants 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 terms variant and variants thereof mean 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. . 4. Repeal of temporary Brady provision Section 922 of title 18, United States Code, is amended by striking subsection (s). 5. Physical security of dealer premises (a) Security plan submission requirement (1) In general Section 923(d)(1)(G) of title 18, United States Code, is amended by striking the period at the end and inserting , and the applicant submits with the application a security plan that describes how the applicant will secure, in accordance with the regulations issued under section 926(d), the premises from which the applicant will conduct business under the license (including in the event of a natural disaster or other emergency), and the applicant certifies that, if issued such a license, the applicant will comply with the plan