Kratos Design Group KDG Barricade/Handstop Black. The aggressive texture provides excellent contact with a variety of barricades. Incorporated into the design is a slight curve designed to keep the users hand from moving forward of the muzzle. The Tenderizer is made from precision ground 4140 steel to withstand frequent use. The QPQ treatment provides a durable corrosion-resistant finish. The included MLOK hardware uses nitrided MLOK nuts and Class 3A screws with a tensile strength of 140000psi. Strength is in our name and we apply that philosophy to every aspect of our products. The MLOK screws require a T25 Torx wrench (not included). The application of a thread locker is recommended. Kratos Design Group recommends a torque value of 30-35in/lbs for mounting on aluminum handguards. A torque value of 12-15in/lbs is recommended for Magpul polymer handguards. Specifications for Kratos Design Group KDG Barricade/Handstop: Manufacturer: Kratos Design Group Color: Black Fabric/Material: 4140 Steel Length: 1.7 in Width: 0.8 in Height: 1 in Mount: M-LOK Weight: 1.61 oz Package Contents: Kratos Design Group KDG Barricade/Handstop Hardware Kratos Design Group Tenderizer-KDG: KDG Barricade/Handstop Black