The SB Tactical SBT5K-01-SB MP5K Side-Folding End Cap QD Socket designed to add compact, practical functionality to compatible 2-pin K models. Its molded polymer construction provides a durable, lightweight interface for your platform.Featuring an integral folding mechanism, the SBT5K folds to reduce the MP5K's profile for storage and transport. A built-in QD socket supports compatible quick-detach sling attachment. This complete assembly arrives ready to install, helping streamline setup without sourcing separate components. Verify model compatibility before installation.Fits 2 Pin "K" ModelsMolded Polymer End Cap with QD SocketIntegral Side-folding MechanismComplete Assembly, Ready to InstallCompact, install-ready design.