The NcSTAR Armorer's Barrel Wrench Combo Tool Gen II is multiple tools combined in one package which assists in disassembling/ assembling of M4/16/AR15 type rifles. It features a slim profile wrench with multiple functions to attach traditional barrels/foregrip and free-float handguards. It features a barrel wrench for GI barrel nut and free-float barrel nuts with GI spacing, DD barrel nuts, a YHM 1.75 inch spanner wrench, A2 (0.75 inch) and 5/8 inch flash suppressor wrench, M4 collapsable stock castle nut wrench A2 buffer tube wrench, flat blade screw driver for A2 buttstock plate, 1/2 inch and 3/8 inch drive compatible, lower receiver push pin tool, 1/4 inch hex bit drive socket, 1911 barrel bushing wrench, and a tactical bottle opener. All tools are clearly labeled. This tool features a steel construction.