The Barrett Model 99 “Big Shot” is a single-shot sniper rifle first introduced in 1999 by the Barrett Firearms Company (USA). Like the M95, the rifle uses a bullpup configuration meaning the ammunition is loaded behind the pistol grip. However, it is not fed from a magazine. It is instead a single-shot rifle, meaning that one round is loaded directly into the ejection port and is pushed into the chamber by the bolt.
A few jurisdictions in the United States, most notably California as well as a few nations such as Australia, Belgium, Italy and the Netherlands restrict or prohibit civilian ownership of rifles chambered to use the .50 BMG cartridge, but not the .416 Barrett.