Shrapnel

Shrapnel is one of the many residents of Rivet City. Together with his partner Flak, he runs the Flak & Shrapnel weapons store in the Marketplace. He can sell you ordnance and repair your weapons.

Flak and Shrapnel share their store's inventory, so buying or selling from either one of them will update both of their stocks. This means that if Flak is enslaved by the player for Paradise Falls, Flak and Shrapnel's store will still be open. They consistently have a larger amount of caps than the other shops in Rivet City, making them prime sources of cash in exchange for unneeded loot.

Shrapnel can sometimes be seen wandering around Paradise Falls after you enslave his partner. He will even sell items.

Shrapnel can be seen other places outside Rivet City, he has appeared near Flooded Metro (southwest of DC) being attacked by raiders. He will also sell items. It appears that in this "unmoored" state, Shrapnel is still considered by the game to be an essential character, and will be rendered unconscious instead of dying in battle.

If Flak is enslaved, Shrapnel will wander the Wasteland. It will be possible for him to be as far west as Five Axles Rest Stop. He will be unkillable, still talk about Rivet City, and still sell items.

Note
It is not confirmed yet if Shrapnel will stop traveling and stay in rivet city after you save Flak from paradise falls.

Appearances
Shrapnel appears in Fallout 3.