On some firearms the gun barrel is fastened to the receiver with a nut, referred to as a barrel nut. A barrel nut (also known as steel cross dowel or dowel nut) is a specialized forged nut, and is commonly used in aerospace and ready-to-assemble furniture applications.
On some firearms the gun barrel is fastened to the receiver with a nut, referred to as a barrel nut. A barrel nut (also known as steel cross dowel or dowel nut) is a specialized forged nut, and is commonly used in aerospace and ready-to-assemble furniture applications.
Source: Wikipedia "Barrel nut" · CC BY-SA 4.0
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