Ncstar's ar15 armorer's barrel wrench is a generation 2 combo tool with many tools to work and upgrade your ar-15, m4, and m16.It features a barrel wrench for gi barrel nut, free-float barrel nuts with gi spacing, dd barrel nuts, and yhm ( 1 3/4") spanner wrench, a2 (3/4") and 5/8 flash suppressor wrench, m4 collapsible stock castle nut wrench, a2 buffer tube wrench, a flat blade screw driver for a2 buttstock plate, 1/2" and 3/8" drive compatible, lower receiver push pin tool, and 1/4" hex bit drive socket, 1911 barrel bushing wrench, with a tactical bottle opener.All the tools are clearly labeled and is made of steel.Closed Length: 12.9"Type: ArmorersBlade Type: SteelBlade Length: 12.9" LHandle Description: AR-15/M4/M16Weight: 13 ozEdge Type: 13 ozSharpener Type: 1