Armorers Rifle Combo Wrench Tactical Heavy Duty Steel All In One For .223Armorers Wrench Features All steel construction Combines all necessary tools for rifles For . 223 5. 56 300 blackout etc Fits all 223556 300blk 6. 5grendel Calibers Features a separate barrel nut tool for all aluminum Yankee style Midwest omega free floats Has space for a 3 8" torque wrench to be fitted for torqueing down barrel nuts Has the wrench for the castle nut Installs and or removes most muzzle breaks Screw driver end for removal of A2 stocks