Grendel Hunter AR-15 Castle Nut Wrench
Original price was: $19.99.$14.99Current price is: $14.99.
Heavy-Duty AR-15 Castle Nut Wrench with Ergonomic Polymer Grip
Purpose-built for AR-15 builders and armorers, this heavy-duty castle nut wrench delivers the leverage, precision, and durability required for secure buffer tube installation. Whether you are assembling a new lower receiver or performing routine armorer maintenance, this tool is engineered to ensure precise torque application without slipping or damaging your weapon’s components.
Check out our AR-15 Lower Receiver Assembly Tool Bundle!
In stock
Key Features of Grendel Hunter AR-15 Castle Nut Wrench
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Solid Steel Construction: Machined from high-strength steel to withstand heavy torque and resist wear over years of regular workbench use.
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Textured Polymer Handle: Ergonomically designed to reduce hand fatigue. The slip-resistant grip ensures superior control and safety, even when hands or tools are oily.
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1/2″ Torque Wrench Drive: Features a precision-cut 1/2-inch square drive slot, allowing you to easily attach a standard torque wrench to achieve exact tightness on your castle nut.
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A2 Buffer Tube Cutout: Integrated with a dedicated wrench slot specifically designed for the installation and removal of A2-style fixed stock rifle buffer tubes.
Additional information
| Weight | .375 lbs |
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| Dimensions | 2.4 × 1.4 × 2.3 in |
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