Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Rand W. Hammel0
Donald Richardville0
Alex J. Toon0
Date of Patent
March 19, 2024
0Patent Application Number
177142190
Date Filed
April 6, 2022
0Patent Citations
Patent Primary Examiner
CPC Code
Patent abstract
Provided is an interchangeable modular chamber system for a firearm. The system includes a firearm receiver, a barrel comprising lands and grooves, a chamber insert sleeve comprising lands and grooves, an index pin, a locking collar, and a recoil lug. The barrel is threaded into the receiver with the chamber insert sleeve positioned within the barrel. The chamber insert sleeve is indexed to align the lands and grooves of the chamber insert sleeve with those of the barrel. The locking collar and recoil lug are threaded onto the external threads of the barrel and are adjustable to optimize the headspace for different cartridges of the same caliber and to allow for the sacrificial replacement of the throat area of a barrel.
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