| 主权项 |
1. A gas system for a firearm having a bolt, a bolt carrier, a gas key attached to the bolt carrier, a receiver, a barrel defining a gas port, a gas block attached to the barrel having an aperture in communication with the gas port, the gas system comprising:
an elongate static tube defining a first internal passageway, the elongate static tube having a proximal end and a distal end, the distal end being attachable to a portion of the gas block where, when attached to the gas block, the first internal passageway is in communication with the aperture of the gas block; and an elongate dynamic tube having a proximal end and a distal end, the elongate dynamic tube being telescopingly engaged with the elongate static tube wherein the proximal end of the elongate dynamic tube is configured to be fastened to the gas key of the firearm, and wherein the elongate dynamic tube defines a second internal passageway that is in communication with the first internal passageway;wherein firing the firearm causes high pressure gases to enter into the first and second internal passageways via the aperture in the barrel, thereby extending the telescoping relationship between the static tube and the dynamic tube and forcing the bolt carrier proximally. |
