Summary

Reclassifies firearm silencers so they are treated under Title 18 as firearms rather than as special items under the National Firearms Act (NFA). It removes silencers from NFA listings and related tax-code treatment, requires manufacturers/importers to mark a single "keystone" part with a serial number, preempts most state and local taxes and registration rules on silencers, and requires the Attorney General to destroy existing federal registration entries for silencers within one year.

• Silencers are reclassified under Title 18 to be treated the same way as other firearms rather than as a distinct NFA item.
• Persons who acquire or possess silencers under Title 18 are treated as having met NFA registration and licensing requirements for those silencers.
• The Attorney General must destroy all federal registration and transfer records that identify silencers within 365 days of enactment.
• State and local laws imposing silencer-specific taxes (other than general sales/use taxes), marking, recordkeeping, or registration are preempted and voided.
• Manufacturers and importers must mark a single defined "keystone part" of each silencer with a serial number; marking variances can be requested and generally must be granted.
• The Act updates Title 18 definitions for silencers/mufflers and inserts silencers into several existing firearms regulatory provisions.
• The Act explicitly prevents the Consumer Product Safety Commission from gaining jurisdiction over firearms formerly regulated under the NFA.
• Effective timing: reclassification applies to calendar quarters starting more than 90 days after enactment; record destruction required within 365 days.