Bozar is a weapon in Fallout 2.
Description: The ultimate refinement of the sniper's art. Although somewhat finicky and prone to jamming if not kept scrupulously clean, the big weapon's accuracy more than makes up for its extra maintenance requirements.
Locations: Buster's guards in NCR have it, so you can steal it off them. You can buy them from New Reno arms after you are a made man of a family. There is also one in the basement of the Toxic Caves northwest of Klamath. Many consider it to be the ultimate Big Gun, along with the Vindicator Minigun.
The Bozar may have been repurposed during the game's development: it behaves like a minigun, but is modeled after the Barret M82 fifty caliber sniper rifle. In fact, the in-game description even implies that the weapon is supposed to be a single-shot rifle rather than an automatic weapon.