Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Complete mainspring assembly designed for the Ruger MKII or MKIII. Mainspring components are wire EDM-cut and CNC-machined. Volquartsen mainspring does not feature the lock feature found on the Ruger factory MKIII Mainspring.

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Ships from Manufacturer. Additional processing time required. Please allow for 35 additional business days for shipping.