English: Some privately made machine gun conversion devices. Glock switches are featured on the left. Conversely, the so-called “swift link’ devices are featured on the right.
Uploaded a work by U.S. Department of Justice, Bureau of Alcohol, Tobacco, Firearms, and Explosives. from https://www.atf.gov/firearms/privately-made-firearms with UploadWizard
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):