
Availability: In Stock
Building or maintaining an AR-15 requires getting the barrel nut torqued to exact specifications, and the NCStar AR-15 Barrel Nut Crow's Foot Tool makes that job straightforward. This steel crow's foot attachment fits both 1/2" and 3/8" drive torque wrenches, letting you apply the proper torque to GI-spec barrel nuts without guesswork or risk of over-tightening. Whether you're doing a custom build, a barrel swap, or reassembly after cleaning, this tool ensures your barrel nut is seated correctly every time.
Barrel nut installation is one of those gunsmith tasks that seems simple until you realize you need the right tool to do it right. A torque wrench alone won't work—you need the correct crow's foot adapter to reach the nut's geometry and transfer force evenly. The NCStar tool's steel construction and dual-drive compatibility make it a no-fuss addition to any AR builder's kit or shop workbench.
Weighing just 8 ounces, it's light enough to throw in a range bag or tool roll alongside your torque wrench. If you're serious about barrel work—whether that's your first build or your fifth—this is the kind of straightforward, reliable tool that pays for itself the first time you use it.
| Brand | NCStar |
| Tool Type | Barrel Nut Crow's Foot Adapter |
| Drive Compatibility | 1/2" and 3/8" drive |
| Material | Steel |
| Weight | 8.0 oz |
This tool is designed for GI-spec AR-15 barrel nuts, the standard military-pattern nuts found on most AR platform rifles.
Yes. The NCStar crow's foot is compatible with both 1/2" and 3/8" drive torque wrenches, so it will work with most common shop and gunsmith torque wrenches.
A crow's foot adapter is the proper way to torque a barrel nut, as it allows the torque wrench to apply force evenly to the nut's geometry and ensures the correct specification is met.




SKU: 144596767 • Width: 6in • Height: 0.75in • Depth: 7.25in • Weight: 0.56oz





Availability: In Stock
Building or maintaining an AR-15 requires getting the barrel nut torqued to exact specifications, and the NCStar AR-15 Barrel Nut Crow's Foot Tool makes that job straightforward. This steel crow's foot attachment fits both 1/2" and 3/8" drive torque wrenches, letting you apply the proper torque to GI-spec barrel nuts without guesswork or risk of over-tightening. Whether you're doing a custom build, a barrel swap, or reassembly after cleaning, this tool ensures your barrel nut is seated correctly every time.
Barrel nut installation is one of those gunsmith tasks that seems simple until you realize you need the right tool to do it right. A torque wrench alone won't work—you need the correct crow's foot adapter to reach the nut's geometry and transfer force evenly. The NCStar tool's steel construction and dual-drive compatibility make it a no-fuss addition to any AR builder's kit or shop workbench.
Weighing just 8 ounces, it's light enough to throw in a range bag or tool roll alongside your torque wrench. If you're serious about barrel work—whether that's your first build or your fifth—this is the kind of straightforward, reliable tool that pays for itself the first time you use it.
| Brand | NCStar |
| Tool Type | Barrel Nut Crow's Foot Adapter |
| Drive Compatibility | 1/2" and 3/8" drive |
| Material | Steel |
| Weight | 8.0 oz |
This tool is designed for GI-spec AR-15 barrel nuts, the standard military-pattern nuts found on most AR platform rifles.
Yes. The NCStar crow's foot is compatible with both 1/2" and 3/8" drive torque wrenches, so it will work with most common shop and gunsmith torque wrenches.
A crow's foot adapter is the proper way to torque a barrel nut, as it allows the torque wrench to apply force evenly to the nut's geometry and ensures the correct specification is met.
SKU: 144596767 • Width: 6in • Height: 0.75in • Depth: 7.25in • Weight: 0.56oz



