Elevate your shooting experience with the Cornerstone safety thumb ledge for Ruger Mark IV 22/45 by TANDEMKROSS. Whether you're a competitive shooter aiming to enhance your speed and precision or a casual enthusiast seeking improved control, this upgrade is essential for achieving a superior grip. Crafted from durable anodized aluminum, the oversized 1911-style safety ledge seamlessly integrates with your firearm, enhancing the external factory safety without altering its internal mechanisms. This User-friendly, drop-in component is simple to install and offers a perfect opportunity to replace the factory ambidextrous safety, which can be uncomfortable for some users. Designed specifically for the Ruger Mark IV 22/45, the aluminum safety ledge provides optimal thumb placement, ensuring a secure grip, consistent hand positioning and effective muzzle flip control. As one of the top accessories for competition shooters, the Cornerstone safety thumb ledge is your key to laying the foundation for improved performance. Upgrade today and experience the difference in your shooting accuracy and control. Enlarged safety ledge in the 1911 style Improves factory safety Enhances hand positioning to optimize grip and control