| 摘要 |
A method of operating a firearm having a modified gas operating system including directing gas from a barrel of a firearm upward through a barrel gas port, routing the gas from the barrel gas port through a gas jet, directing the gas from the gas jet through a gas operation tube, and directing the gas to a bolt carrier assembly to move at least a portion of the bolt carrier assembly relative to the barrel, the movement of the at least a portion of the bolt carrier assembly to cause excess gas in the barrel to be vented through the gas jet.
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