Firearm platform and method of connecting upper and lower receivers
US12339084B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 17, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jan 17, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A3/66
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A firearm platform and method of connecting an upper receiver to a lower receiver. The upper receiver has a pivot lug and a takedown lug with perimeter openings in opposite directions. The lower receiver has a locking member that pushes against the takedown lug which causes the upper receiver to displace forward. As a result of the forward displacement, a pivot pin in the lower receiver exerts an opposing force against the pivot lug. The locking member is displaced between a locked and unlocked position through a lever located on an exterior surface of the lower receiver. When the locking member is in the locked position, the lower receiver and uppers receiver form a connection that is tight and free from slop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.