The NCStar AR-15 Castle Nut Crow’s Foot Tool (brand part no. VTARCFLWR) is a single-purpose spanner built for GI-spec AR15/M4 castle nuts on telescoping stock tubes. Made by NCStar, it’s the pared-down companion to the Crow’s Foot Pro for anyone who only needs castle nut leverage, not the full buffer tube and screwdriver combo. It’s a simple, focused tool for a common AR15 job.

Key Specifications

• It’s cut specifically for GI-spec AR15/M4 castle nuts on telescoping stock tubes.
• It’s machined for both 1/2-inch and 3/8-inch drive, so it works with a torque wrench to hit spec.

Frequently Asked Questions

Does this tool also cover the buffer tube wrench flats? No, this is the castle-nut-only version; NCStar’s Crow’s Foot Pro adds the buffer tube and screwdriver functions.

Will it torque a castle nut to the correct spec? Yes, the 1/2-inch and 3/8-inch drive fitment lets you use it with a standard torque wrench.

Buy the NCStar Crow’s Foot Castle Nut Tool

When all you need is castle nut leverage, this focused tool gets the job done without extra bulk. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see the rest of our gunsmithing tools.