Product Description The Volquartsen Bolt Tune-Up Kit is a performance-reliability upgrade for Ruger Mark I, Mark II, Mark III, Mark IV, and 22/45 target pistols. It includes Volquartsen&&';;s Exact Edge Extractor and SureStrike Firing Pin to help address common cycling and ignition issues, reducing light strikes and stovepipes for smoother, more dependable operation. Product Highlights Designed for Ruger Mark I, Mark II, Mark III, Mark IV, and 22/45 target pistols Includes Volquartsen Exact Edge Extractor and SureStrike Firing Pin Helps eliminate light strikes for more consistent ignition Helps reduce stovepipes for improved ejection reliability Made in the USA Specs Brand: Volquartsen Manufacturer Part Number: VOLVC3FE UPC: 810162012687 Product Type: Bolt Tune-Up Kit Compatibility: Ruger Mark I, Mark II, Mark III, Mark IV, and 22/45 target pistols Included Components: Exact Edge Extractor; SureStrike Firing Pin Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.