Modular firearm
US7131228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41C23/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An M-4 firearm having a lower receiver assembly and an upper receiver assembly. The upper receiver assembly is connected to the lower receiver assembly. The lower receiver assembly has a fire control assembly. The upper receiver assembly has a barrel and a hand guard. The hand guard has a venting features for allowing cooling air to pass therethrough. The hand guard has a heat shield mounted therein. The hand guard has at least one peripheral device mounting rail. The hand guard has an upper portion and a removable lower portion. The removable lower portion has at least one peripheral device mounting rail. The removable lower portion may be removed and replaced with a different second removable lower portion without the removal of fasteners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.