The Barrett Model 99 "Big Shot" is a single-shot sniper rifle first introduced in 1999 by the Barrett Firearms Company (United States). The company is better known worldwide for its earlier .50 BMG rifles, the Semi-automatic firearm M82 Barrett rifle and bolt-action Barrett M95. 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 (firearms). 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 (firearm).
The rifle comes in several variations. The .416 Barrett is, in theory, more accurate than the .50 BMG because the round is of a higher velocity and lower caliber (making it more aerodynamic). However, the drag-to-weight ratios of the respective bullets give the .50 BMG an advantage at ultra-long ranges. The .416 Barrett model is available with a 32" barrel. The .50 BMG model is available in 25", 29" and 32". MSRP ranges from $3,800 to $4000.