Forward Controls Design Dual Purpose Wrench w/Suppressor 3/4 Wrench and Castle Nut Wrench Black DPW Dual Purpose Wrech. Instead of a large and heavy armorer's wrench that does all acceptably well but in practice most users only use 2 or 3 functions on it we prefer compact dedicated wrenches optimized for the tasks they're designed to handle exceptionally well. JCW (Joint Castle nut Wrench) JMW (Joint Muzzle devices Wrench) CBW (Combination Barrel nut wrench) are all examples of compact light and finely machined tools. DPW largely follows the form factor of these dedicated wrenches it breaks from the FCD tools convention by having two different functions that are not necessarily related to one another: a 3/4in muzzle devices wrench and a castle nut wrench two of the often used functions of an armorer's wrench. The 3/4in muzzle devices wrench is thinner than that found on an armorer's wrench the thinner profile enables it get into tight spaces. The 3 lug castle nut wrench fits snug and securely on in spec TDP spec castle nuts DPW is small and light enough to be carried full time in a pack an application a 12in long 1.9lb armorer's wrench woud be ill suited for. Though it wasn't originally designed to be a portable armorer's wrench its size weight and practicality fit the mission profile. DPW is designed for use with a torque wrench with a 1/2 drive socket with a soft contour that's pleasant in the user's hands. Machined from a solid block heat treated and black oxide coated DPW is a joint project between Revival Defense and FCD. Specifications for Forward Controls Design Dual Purpose Wrench w/Suppressor 3/4 Wrench and Castle Nut Wrench: Manufacturer: Forward Controls Design Color: Black Finish: Oxide Weight: 3.8 oz Package Contents: Forward Controls Design Dual Purpose Wrench w/Suppressor 3/4 Wrench and Castle Nut Wrench Forward Controls Design DPW Dual Purpose Wrech: Dual Purpose Wrench w/Suppressor 3/4 Wrench and Castle Nut Wrench Black