New Gen Claw Mount with Double Picatinny Rails and STANAG Dimensions New Gen. H&K Claw Mount with Double Picatinny Rails and STANAG Dimension Creative one-piece integral Picatinny double rails. Accepts all varieties of scope, tactical flashlight and laser. Additional STANAG dimension for most versatile applications. Great new gen look at the most affordable price. Works with: MP5 Variants H&K G3 Variants GSG