Calibrated receiver (Fallout 4)

A calibrated receiver is a weapon mod for the 10mm pistol, the assault rifle, the combat rifle, the combat shotgun, the Deliverer, the double-barrel shotgun, the hunting rifle, the pipe bolt-action pistol, the pipe gun and the pipe revolver in Fallout 4. It does not require any perks to craft.

Effects
A calibrated receiver improves the critical shot damage of the modded weapon.

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

Location
Crafted at a weapons workbench.