M4/AR15 Castle Nut Tool V2

Price: $9.90 – $11.53 — In stock at 2 retailers.

Castle nuts on AR15s are hard to work with without proper tools. Pliers will scratch them and in some cases, you won’t be able to untighten them at all with just pliers. This tool also has slots to allow you to remove your flash hiders ! That’s why this tool is handy to have at home . It’s small and fits into every toolkit .