|The following is based on Van Buren and has not been confirmed by canon sources.|
Frieda's Firearms is a gun store owned by Frieda Van Graff, located in Hoover Dam.
A nice shack like structure that houses a lot of shelves filled with a lot of firearms and ammunition. Frieda, a fifties African-American woman who seems too elegant and proper to be a firearm retailer, is the proprietor. Her wares will vary from time to time, with better firearms and ammunition coming later in the game. This could change, of course, if the player has done unsavory things in Hoover and lets things flounder and collapse. Then Frieda will pack up and seek out greener pastures.
Frieda's Firearms was going to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios.