Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Riley Hart0
Date of Patent
March 22, 2022
0Patent Application Number
169510400
Date Filed
November 18, 2020
0Patent Citations Received
Patent Primary Examiner
CPC Code
Provided is an external piston gas-operated firearm with an adjustable gas flow. A gas piston is operably connected to a bolt carrier. A gas block has an internal cylinder configured to receive a head portion of the gas piston and the cylinder is operably connected to a barrel bore to allow propellant gas pressure to bear against a face of the piston head portion. The gas piston includes at least one axially selectively positionable exhaust port such that in a first axial orientation no gas is vented through the exhaust port and in a second axial orientation a portion of the gas pressure is exhausted in conjunction with displacement of the piston to cycle the action.
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