The Marble Arms 0.463 inches Tang standard upright is a precision-engineered component designed to fit seamlessly with the Marble Arms improved peep sight. Constructed with high-quality materials, this upright is finished in black, ensuring both durability and a sleek appearance. The 0.463 inches tang provides a secure and stable attachment, enhancing the overall performance and reliability of the sight system. This component is ideal for users seeking to optimize their shooting accuracy and consistency, offering a robust solution for various shooting applications.