Wheeler Delta Series Castle Nut Crowfoot Wrench - Black Steel

The Wheeler Delta Series Castle Nut Crowfoot Wrench is a purpose-built armorer’s tool engineered for installing and removing both standard and low-profile castle nuts on AR-15 and LR-308 pattern rifles. Crafted from professional-grade hardened steel and finished in a corrosion-resistant black oxide coating, this crowfoot wrench is built to stand up to repeated bench use during rifle assembly, maintenance, and modification.

The innovative dual-ended design fits standard castle nuts on one end and low-profile castle nuts on the other, letting a single wrench perform multiple functions during a single build. The crowfoot profile is machined for an exact fit on the castle nut flats, providing the confident engagement needed to apply torque without slipping or chewing up the nut.

The wrench is compatible with the Wheeler XL F.A.T. wrench and works with any standard 1/2" drive torque wrench, allowing the user to torque castle nuts to the correct specification when installing a buffer system, adjustable stock, or free-float tube retainer. Part of the Wheeler Delta Series tool line, the Castle Nut Crowfoot Wrench is a clean, repeatable solution for gunsmiths and home builders who want exact fitment without marring their receiver or castle nut.