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Luth-AR Castle Nut for AR15

🇺🇸

Original price was: $5.05.Current price is: $4.75.

Threaded steel castle nut used to retain the carbine buffer tube to the lower receiver. This critical part is an essential item for any AR build, and worth keeping a few around just in-case.

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In stock

SKU: CS-02 Categories: , , Tag:
UPC:
Brand

Luth-AR
Country of Origin

United States
Platform

AR15

The AR-15 castle nut is a crucial component of any AR15/AR10 build. The caste nut is used to secure a receiver extension (buffer tube) to the lower receiver. Made from 4140 steel and finished in a durable manganese phosphate coating for years of reliable service.

A castle nut is an essential part of your next rifle or pistol build. Don’t forget to pick one up when you’re buying a new buffer tube or buffer kit to complete your next build. We also have parts kits available to help finish your build, or just to have one hand for spares.