HK416, MR556 Buffer Tube Wrench

HK MR556 & HK416 Buffer Tube Wrench The perfect metric wrench to remove and install the MR556 & HK 416 castle nuts on the buffer tube. A perfect addition to have on hand for OTB or other HK buffer tube upgrades, etc. Made from all steel, heat treated and made to last for a lifetime of use. A must have item when removing or installing any of the factory HK MR556, HK416 buffer tube assemblies. Compatible With: * MR556 * HK 416