Introducing our precision engineered complete Mainspring assembly, meticulously crafted for the Ruger MKII and MKIII pistols. This assembly is a testament to superior craftsmanship, utilizing advanced wire EDM-cutting and CNC-machining techniques to ensure unparalleled accuracy and reliability. Unlike the standard Ruger factory MKIII mainspring, our design omits the lock feature, offering a streamlined and efficient performance tailored for enthusiasts who prioritize seamless operation. Elevate your firearm's functionality with this expertly designed mainspring assembly, where precision meets performance.

Manufactured in the USA

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).