Wrench tool compatible with M4 AEGs and GBBRs Features multiple tools in one package Assists in disassembling/ assembling of M4/16/M4 type rifles Full metal construction with a slim profile Necessary for those who upgrade their airsoft parts Replace or upgrade your buffer tube to suit your next mission Lightweight, sturdy and easy to carrySpecifications: Brand TMC Function Castle Nut / Torque Wrench Tool Build Stainless Steel Compatibility M4/M16 AEG Rifles Color STEEL 1X Wrench Tool