Volquartsen Competition Bolt MK IV - Black DLC Are you a competitive shooter looking to eliminate stovepipes, failures to fire, and improve the overall performance of your Ruger MKII, MKIII, or MK IV pistol? The Volquartsen Competition Bolt MK IV is the answer. CNC-machined and ground for superior tolerances, fit, and finish, this precision-crafted bolt is case hardened and treated with a Diamond Like Carbon (DLC) finish for unmatched durability, reduced friction, and long-lasting performance. Featuring an integral Extended Bolt Racker and a complete hardware package including the Exact Edge Extractor, SureStrike Firing Pin, and three color-coded recoil springs, this drop-in upgrade is engineered to take your rimfire shooting to the next level. Made in the USA. Product Highlights CNC-Machined Precision: Ground to superior tolerances for an exceptional fit and finish in Ruger MKII, MKIII, and MK IV pistols. Diamond Like Carbon (DLC) Finish: Case hardened and DLC-treated for increased hardness, increased lubricity, low coefficient of friction, improved wear resistance, and reduced lubrication requirements. Integral Extended Bolt Racker: Machined directly into the bolt for effortless manual cycling with no more pinched fingers. Complete Hardware Package: Includes Exact Edge Extractor (MKII, MKIII, MK IV), SureStrike Firing Pin (MKI, MKII, MKIII, MK IV), and a Recoil Rod with three color-coded springs for standard, high-velocity, and reduced-power applications. Versatile Compatibility: Works with both 22/45 and Target Models; compatible with Ruger MKII, MKIII, and MK IV platforms. Specs Brand: Volquartsen Manufacturer Part Number (MPN): VOLVC4BTB UPC: 810162015183 Finish: Black Diamond Like Carbon (DLC) Approximate Weight: 5 oz Compatible Platforms: Ruger MKII, MKIII, MK IV (22/45 and Target Models) Included Components: Exact Edge Extractor, SureStrike Firing Pin, Recoil Rod with standard-rate, heavy-weight (gold), and reduced-power (dark-coated) springs Country of Origin: USA Note: When used with MKIII pistols, the loaded chamber indicator must be removed from the pistol. 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.