This senior design project focuses on developing a mechanical locking system that securely connects a cylindrical component to a rectangular rail. The goal of the project is to design a connection mechanism that can withstand high stress during loading while still allowing the cylindrical shell to disengage when the system is released. The project is sponsored by the Naval Undersea Warfare Center (NUWC) in Newport, Rhode Island. NUWC is interested in improving the reliability and performance of an existing connection method used in one of their systems. Because of confidentiality requirements, detailed information about the current design cannot be shared publicly. As a result, the design process relies heavily on general mechanical design principles and publicly available research related to mechanical joints, locking systems, and clamping mechanisms. The core challenge of the project is creating a mechanism that can securely hold the cylindrical shell in place while loads are applied, but also release reliably when required. To achieve this, the team must design a locking system that satisfies several engineering constraints, including structural strength, weight limitations, available space for components, and compatibility with the surrounding assembly. The design process involves developing concepts, modeling components in SolidWorks, and evaluating performance through engineering analysis. Structural simulations are used to ensure that the mechanism can withstand the expected loading conditions without failure. Prototyping and testing are also necessary steps in refining the design and identifying potential weaknesses in the mechanism. The current design approach uses a teeth-clamp style locking mechanism that grips the cylindrical shell and secures it to the rail during loading. Ongoing work focuses on refining the geometry, improving reliability, and ensuring the system meets the performance expectations defined by the project sponsor.