Atom's Bulwark is a unique piece of armor in the Fallout 4 add-on . It is a legendary arm or chest piece of Marine armor.
It provides a
Damage Resistance and Energy Resistance of 15 at 0 Rads, equal to combat armor. They both increase linearly according to the following: every time your current radiation level increases past a 10% threshold of your total health, your total DR and ER will both increase by 5. Specifically, if 10% of your health bar is taken by radiation, you will gain 5 DR and ER. If 90% of your health bar is taken by radiation, you will gain 45 DR and ER.
The specific form of this item depends on the character's level: below level 40, it spawns as either a left or right arm; above level 40, it spawns as a chest piece.
Rewarded by visiting
High Confessor Tektus after completing Reformation or after destroying Far Harbor in Cleansing the Land.
Outfits Agatha's dress · Army fatigues · Athletic outfit · Baseball uniform · Bathrobe · Beaded blazer · Black vest and slacks · Bomber jacket · Brotherhood fatigues · BOS uniform · Casual outfit · Checkered shirt and slacks · Child of Atom brown rags · Child of Atom green rags · Child of Atom long brown rags · Child of Atom long green rags · Child of Atom long rags · Child of Atom short rags · Child of Atom short brown rags · Child of Atom short green rags · Child of Atom simple rags · Cleanroom suit · Colonial duster · Covert sweater vest · Courser uniform · Drifter outfit · Engineer's armor ( ) Teagan's armor · Explorer outfit · Farmhand clothes · Fatigues · Feathered dress · Field scribe's armor · Flannel shirt and jeans · Geneva's ensemble · Greaser jacket and jeans ( Atom Cats, ) Zeke's · Green shirt and combat boots · Grognak costume · Gunner flannel shirt and jeans · Gunner guard outfit · Hazmat suit (Damaged) · Hooded rags · Kellogg's outfit · Ingram's UnderArmor · Institute division head coat · Institute jumper · Institute lab coat · Lab coat ( , Cabot's , Father's Vault-Tec) · Laundered dress ( Blue, Cream, Denim, Green, Rose, Pink) · Laundered loungewear · Leather coat ( Traveling leather coat) · Letterman's jacket and jeans ( ) DB Tech varsity uniform · Long johns · Longshoreman outfit · MacCready's duster · Maxson's battlecoat · Mechanic jumpsuit (Green, Red Rocket) · Military fatigues · Minuteman outfit · Minutemen general's uniform · Padded blue jacket · Pastor's vestments · Postman uniform · Quinlan's armor · Radstag hide outfit · Raider leathers · Railroad armored coat · Ratty skirt · Red dress · Red frock coat · Red leather trench coat · Road leathers · Science scribe's armor · Sequin dress · Silver Shroud costume · Squire's uniform · Submariner uniform · Suit ( Black, Blue, Striped, Tan, Grey, Patched, Patched Three-Piece, ) Lorenzo's · Summer shorts · Surveyor outfit ( Reginald's suit) · Suspenders and slacks · Synth uniform · Tattered field jacket · Tattered rags · T-shirt and slacks · Tuxedo · Undershirt & jeans · Utility coveralls · Winter jacket and jeans · Yellow trench coat · Vault jumpsuit