The keymod qr picatinny rail utilizes a solid aluminum housing coupled with steel fasteners.Their quick releases give the operator the perfect combination of strength and functionality.Its system uses simple push button technology to allow the operator to attach their mount to any keymod rail; once the buttons are released the mount locks into place and provided a durable base for the operator needs.Adaptor Type: BlackType: Picatinny RailTube Diameter: Quick ReleaseHeight: 2.36" L x 0.51" H