Hardened piercing auto receiver

A hardened piercing auto receiver is a weapon mod for the 10mm pistol, the assault rifle, the combat rifle, the combat shotgun and the pipe gun in Fallout 4.

Effects
A hardened piercing auto receiver provides improved rate of fire and armor penetration, at the cost of reduced damage and range.

Production
The recipe for this weapon mod varies depending on the weapon for which it is made:

Location
Crafted at a weapons workbench.