Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool Black. 56/.223 Combo Wrench / Armorer's Tool: 1. Removal and installation of 5.56/223 barrels 2. Install and disassemble free float tubes barrel nut 3. Receiver tube stock nut wrench old style 1 point 4. Tube stock castle nut wrench new style 3 point 5. A1/A2 flash hider slot/receiver extensions 6. Square opening for torque bar Specifications for Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool: Manufacturer: Presma Color: Black Finish: Anodized Gun Model: AR-15 Condition: New Caliber: 5.56x45mm NATO .223 Remington Gun Type: Rifle Features of Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool Perfect for installing free float handguard Package Contents: Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool What firearm models does the manufacturer say Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool is compatible with? The manufacturer says that Presma AR-15 5.56/.223 Combo Wrench / Armorer's Tool is compatible with AR-15Presma ARTL08: AR-15 5.56/.223 Combo Wrench / Armorer's Tool Black