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Fallout Wiki

Heavy is a weapon mod in Fallout 4.

Effects[]

When equipped on a lead pipe, pipe wrench and sledgehammer, it appears with the "Heavy" prefix and a unique secondary attachment on the striking head. This attachment depends on the weapon: for the lead pipe, this involves rusted gears and screws embedded in it, the pipe wrench has a single rusted gear clenched in the teeth, while the sledgehammer has a thicker, wider striking head. It deals variably increased damage per hit, and gains a chance to inflict increased limb damage (more likely to cripple limbs) and a separate, higher likelihood to cripple limbs.

Production[]

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

Materials:Requirements:Produces:
Adhesive (varies)
Concrete (varies)
Screw (varies)
Steel (varies)
Wood (varies)
Range
Blacksmith Ranks (varies)
Level
Heavy (1)
Weapon Blacksmith Adhesive Concrete Screw Steel Wood
Lead pipe 2 1 2 0 1 0
Pipe wrench 1 3 0 2 4 0
Sledgehammer 2 4 7 0 0 2

Location[]

The heavy modification does not spawn as loot. It can be crafted at a weapons workbench.

It may appear equipped on lead pipes, pipe wrenches, and sledgehammers carried by NPCs, including but not limited to:

It may also appear equipped on those sold by weapons vendors, including but not limited to:

Notes[]

The cap value and weight of this mod varies according to the weapon it attaches to, as follows:

Weapon Value Weight
Lead pipe 11 2.2
Pipe wrench 12 0.7
Sledgehammer 30 9

Gallery[]