The automatic barrel provides a better rate of fire, range and sighted accuracy in exchange for worse recoil, reduced ammo capacity and poor hip-fire accuracy.
The recipe for this weapon mod varies depending on the weapon for which it is made:
Fiber optics (2-5)
Automatic barrel (1)
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While this mod increases the effective damage per second of weapons it can convert into an automatic, it also greatly increases the ammunition usage of the weapons.
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