Upgrade your shooting experience with our precision engineered bolt release replacement, designed for seamless installation in just minutes. This enhanced component features a robust .375 Cal serrated face, offering shooters a significantly easier and more reliable bolt release action. Specifically crafted to fit both the Ruger MKII and MKIII models, this bolt release ensures optimal performance and durability. Please note, this product is not compatible with the 22/45 model. Elevate your firearm's functionality with this essential upgrade, perfect for both novice and experienced shooters seeking improved handling and efficiency. Manufactured in the USA