- AR-15 Armorer's Barrel Wrench. Combo Tool With Plenty Of Features To Work, Upgrade Your AR-15/ M4/ M16. Barrel Wrench For GI Barrel Nut. A1 & A2 Flash Suppressor Wrench. Older Single Pin And The Newer M4 Collapsible Stock Castle Nut Wrench. Flat Blade Screw Driver. 1/2" Drive Ratchet Compatible.
- Steel Construction. Length: 12.7". Weight: 20.2 Oz.