Quick change barrel system for a firearm

Details Quick change barrel system for a firearm Quick change barrel system for a firearm

2008-01-11

2009-08-18

Carone, Michael (Department: 3641)

Firearms

Stock or barrel connectors

Barrel to receiver

C042S075010, C042S075040

Reexamination Certificate

active

07574823

ABSTRACT:
The present invention is an improved quick change barrel system for a firearm. It features an interlocking trunnion and lock ring that hold the barrel in place proximate the receiver. Intermittent threading provides multiple points of interface. A foldable handle is provided to allow safe removal of the lock ring and additional torque for attachment and removal of the lock ring from the system.

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Zinmba, Jeff W., “The QCB Upper Receiver for the AR-15/M16/M4”, the Small Arms Review, vol. 8, No. 3, Dec. 2004, pp. 37-40.

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