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Ergo AR-15 Castle Nut

MSRP: $5.75


A castle nut for AR-15s.

Out of stock

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Ergo Castle Nut 4971

The castle nut (also known as the stock lock ring and receiver extension nut) is used to secure the buffer tube to the lower receiver.

Additional information

Weight0.1 lbs
Dimensions4 × 3 × 0.25 in

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Ergo AR-15 Castle Nut for sale.

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Manufacturer's SKU: 4971

SKU: 186974

Product images are provided by the manufacturer and might not depict the actual product with 100% accuracy. Check the product description to verify it is exactly what you desire.

WARNING: This product contains a chemical known to the State of California to cause cancer. Also, drinking water and breathing heavily has been known to cause cancer by the state of California.

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