The Daniel Defense heavy-duty bolt-up barrel nut wrench — the proprietary spanner required to install or remove RIS II and other DD bolt-up system barrel nuts.
This is the upgraded steel version of Daniel Defense's proprietary barrel nut wrench. The original aluminum wrench was known for bending under torque — this heavy-duty replacement is built from thicker steel stock and holds up to repeated use. One critical note: always pull the wrench in the direction that closes the C-shape onto the barrel nut. Pushing it open will spread the jaws and deform the wrench. "Close the C" is the rule.
We keep these separated from the older aluminum wrenches — when you order from Charlie's, you get the heavy-duty steel version. Copy that — add to cart and save yourself the headache.
