A Barrel Nut is a firearm component used on barrels. Its purpose may vary depending on the firearm it is used on.
Variations[]
Handguards[]
On handguards, a barrel nut may refer to the component that holds the handguards to the barrel.
Machine Guns[]
On machine guns, a barrel nut is a screw on component at the rear of the barrel that has locking lugs and a notch for quick barrel change and helps install it in the trunnion.
