Je Machine Tech Armorers Combo Wrench Features The Je Machine Tech Armorers Combo Wrench is machined from heavy duty steel and combines a barrel nut wrench a muzzle brake wrench and a three point castle nut wrench in a single tool. That consolidation means an armorer can install or disassemble barrel nuts compensators and buffer tubes without switching between several single purpose wrenches. The tool includes a half inch drive a quarter inch drive a seven sixteenths inch hex and a quarter inch hex covering most of the common fasteners found on AR platform builds. Having all of these fittings on one wrench speeds up routine maintenance and keeps a builder s tool roll lighter. An ergonomic handle gives the wrench a comfortable secure grip even when applying real torque to a stubborn castle nut or muzzle device. Je Machine Tech designed the tool specifically with armorers in mind building durability and functionality into every feature of the combo wrench. Whether building a rifle from scratch servicing a duty carbine or customizing a personal AR this wrench handles the essential nut and barrel work in one compact package. It is a practical no-nonsense addition to any AR owner s toolbox for sale at GrabAGun. JE Machine Tech Armorers Combo Wrench Specifications Manufacturer: JE Machine Tech Model: Armorers Combo Wrench Color: Black Material: Steel Features: Barrel Nut Wrench Muzzle Brake Wrench 3-Point Castle Nut Wrench 1/2in and 1/4in Drive 7/16in and 1/4in Hex Available At: GrabAGun