Importation & Verification of Firearms, Ammunition and Implements of War
Gun Control Act Definitions
Silencer
The term “Firearm Silencer” or “Firearm Muffler” means any device for silencing, muffling, or diminishing the report of a portable firearm, including any combination of parts, designed or redesigned, and intended for the use in assembling or fabricating a firearm silencer or firearm muffler, any part intended only for use in such assembly or fabrication.
![Exploded and cut-away views of Silencers](https://webarchive.library.unt.edu/web/20120928162724im_/http://www.atf.gov/graphics/firearms/importation-guidebook/gca-silencer.jpg)
Note: Any device that meets the definition as stipulated above in 18 U.S.C. § 921(a)(24) is also subject to controls of the National Firearms Act 26 U.S.C., Chapter 53.