MDT LSS Gen 3 XTN Buttstock Interface Fits MDT LSS Gen 3 Cerakote Finish Black. Your setup should too. The MDT LSS GEN3 Chassis was built to be modular and that includes the back end. Whether you're switching from a compact truck gun to a long-range setup-or just want to try a different feel you can swap buttstock interfaces in minutes. Specifications for MDT LSS Gen 3 Buttstock Interface: Manufacturer: MDT Condition: New Color: Black Gun Type: Rifle Fabric/Material: 6061 Aluminum Finish: Cerakote LSS GEN3 makes it easy to change your setup Swap the back end without pulling your barreled action Machined aluminum with precision fitment Package Contents: MDT LSS Gen 3 Buttstock Interface