Advanced Technology A5101020 AR-15 Castle Nut Black | Sale

Specifications

Material—-Steel

WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV

Product Overview

This Advanced Technology (ATI) AR-15 castle nut (steel, black) is designed to secure the buffer tube assembly on AR-15 pattern rifles. It’s built for durability and works with commercial, military, and hybrid buffer tubes for reliable installation across common AR-15 configurations.

Key Features

• Steel construction for long service life
• Black finish for a clean, low-glare look
• Compatible with commercial, military, and hybrid buffer tubes
• Made for AR-15 / AR-15 pattern rifles and variants
• Not intended for 308/AR-10 pattern rifles

Upgrade or replace your buffer tube hardware with a factory-style ATI AR-15 castle nut for a secure build.