Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D773592 | Folding stock for a submachine gun | — | 2016-12-06 |
| D731023 | Folding stock for submachine gun | Robert Hirt, Christopher Brent D'Alfonso | 2015-06-02 |
| D725219 | Telescoping stock for submachine gun | Robert Hirt, Christopher Brent D'Alfonso | 2015-03-24 |
| D724688 | Grip for submachine gun | Robert Hirt | 2015-03-17 |
| 5749618 | Visor with telescoping extender blade | — | 1998-05-12 |