Geissele Barrel Nut Wrench 02-243F

Geissele Barrel Nut Wrench 02-243F solves a straightforward problem: attaching or removing a barrel nut without marring the finish or fighting it with an improvised tool that doesn't quite fit.

This Geissele barrel nut wrench is machined from steel and laser-cut, finished with a phosphate coating that resists wear and corrosion over years of shop use. A square slot accepts standard torque wrench handles, giving precise, repeatable torque application when mounting handguards and barrel assemblies rather than guessing at how tight is tight enough.

Compatible with Geissele barrel nuts as well as standard AR15/M4 Barrel nuts and LR-308/AR-10 mil-spec barrel nuts, this AR-15 Barrel Nut Wrench covers both major platform families with one tool. It won't work with an A1-pattern barrel nut, so it's worth checking which style is actually installed before assuming universal fit.

Key Features:

• Laser-cut steel construction
• Phosphate-coated black finish
• Square slot for 1/2" torque wrench handles
• Compatible with Geissele barrel nuts
• Compatible with mil-spec AR-15/M4 barrel nuts
• Compatible with LR-308/AR-10 mil-spec barrel nuts
• Not compatible with A1-pattern barrel nuts
• Durable enough for repeated shop use

This wrench earns a permanent spot in the tool bag for anyone who works on more than one AR platform, since it doesn't force a choice between AR-15 and AR-10 compatibility.