Kel-Tec KSG Combo Pack by Hi-Tech: STEEL Shorty "Crusher" Upgrade + "6 NOTCH" Nut Remover Tool + Extended Tube Position Arm. Our most popular KSG packs. Our most popular Steel Shorty This package includes our must have tool to safely remove your stock "6 NOTCH" KSG Barrel Nut that is locktited on from the factory. Removes nut in seconds with an air impact wrench. If you have an older Pre-December 2015 "4 NOTCH" stock barrel Nut, please see our other listing. Our extended Tube Selector Switch allows for lightening fast tube switches with your wrist under high stress. NEW Shoulder Screw design included. Our "Crusher Breacher" is made from Steel (Black) for durability and High Volume Shooters. Complete directions and tools required included. **Our upgrades are IN USE BY LAW ENFORCEMENT & MILITARY UNITS IN THE US & OVERSEAS!** All parts CNC Machined from Stainless Steel for superior strength, only 2.6 oz! Nut Remover tool is made from Stainless Steel. All parts are Made in the USA by Hi-Tech Custom Concepts! Thank you for supporting US jobs.