Atom's Bulwark

Atom's Bulwark is a unique piece of armor in the Fallout 4 add-on Far Harbor. It is a legendary arm or chest piece of Marine armor.

Characteristics
It provides a Damage Resistance and Energy Resistance of 15 at 0 Rads, equal to combat armor. This armor value increases in accordance with the current Radiation level, up to 60 at 90% or more Rads.

Location
Rewarded by visiting High Confessor Tektus after completing Reformation or after destroying Far Harbor in Cleansing the Land.