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Mechanism for gas control in an automatic firearm

  • US 4,125,054 A
  • Filed: 02/22/1977
  • Issued: 11/14/1978
  • Est. Priority Date: 09/27/1976
  • Status: Expired due to Term
First Claim
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1. In a gas operated firearm having a gas operated cylinder for operating the action of the firearm, a receiver cylinder within which the gas operated cylinder has sliding engagement, there being channel means for conveying gas from the barrel of the firearm to the receiver cylinder, the improvement comprising the receiver cylinder being constructed to provide means for regulating a flow of gas through the channel means to the gas operated cylinder, the receiver cylinder having axial passageway means positioned to restrict the flow of gases to the gas operated cylinder, the receiver cylinder having a bore having sliding engagement with a shaft, there being axial passageway means positioned between said shaft and the inside of said bore of the receiver cylinder.

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