Large Size Connectors for MCS – Built for Perfect Fit and Strength These are the official Large Connectors designed to securely join the Large-size components of the Modular Construction System (MCS). Engineered for seamless integration and durability, these connectors ensure maximum stability and alignment across your custom setups. Whether you're expanding your MCS layout or reinforcing a complex structure, the Large Connectors are essential for a sturdy and professional-grade finish. Combine them with Large MCS pieces for a perfect, high-performance fit every time