Firearm having an indirect gas operating system
US7610844B2 · kind B2 · utility
52Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Sep 19, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A5/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An M4 type automatic or semi-automatic firearm having an indirect gas operating system. A bolt assembly has a striking surface. The bolt assembly is enclosed within an M4 type receiver assembly. A barrel assembly having a bore is coupled to the receiver assembly. A gas block having a cylinder is fitted to the barrel assembly with the cylinder in communication with the bore. A piston and rod assembly has a piston and a striking rod, with the piston fitted to the cylinder. Gas discharged from a fired cartridge displaces the piston and causes the striking rod to strike the striking surface displacing the bolt assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.