Barrett · Sniper Rifle

Barrett M99

Name: Barrett M99
Brand: Barrett

Bolt action · 12.7x99mm NATO · introduced 1999

Also known as Model 99, Barrett Model 99

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About the Barrett M99

The Barrett M99 is a single-shot, bolt-action anti-materiel rifle chambered in .50 BMG, produced by Barrett Firearms Manufacturing since 1999. Designed as a lightweight and cost-effective alternative to the semi-automatic M82/M107, the M99 features a bullpup-style layout with the action located behind the pistol grip, reducing overall length while maintaining a full-length 32-inch heavy barrel. The receiver is machined from 7000-series aluminum alloy extrusions, and the bolt is made from S-7 tool steel for maximum durability. The single-shot design eliminates the weight and complexity of a magazine feed system, making the M99 approximately 25% lighter than the M82A1 while delivering identical ballistic performance.

The M99 was designed by Ronnie Barrett as a more affordable entry point into .50 BMG shooting, proving that single-shot simplicity could deliver the same extreme long-range accuracy as more complex semi-automatic designs at roughly half the weight and cost.

Barrett M99 specifications

General

Type: Sniper Rifle
Action: Bolt action
Firing mechanism: Striker-fired
Trigger: Single stage
Calibres: 12.7x99mm NATO
Magazine capacity: 1 rounds

Dimensions

Barrel length: 813 mm (32.0 in)
Overall length: 1270 mm (50.0 in)
Weight (empty): 11.34 kg (25.00 lb)
Weight (loaded): 11.50 kg (25.35 lb)

Barrel

Rifling twist: 1:15 in (381 mm)
Rifling: Right hand
Grooves: 8

Materials

Barrel: Chrome lined steel
Receiver / frame: Aluminum alloy
Stock: Aluminum alloy
Finish: matte_black

Performance

Muzzle velocity (typical): 887 m/s (2910 fps)
Muzzle energy (typical): 16480 J (12155 ft·lb)
Effective range: 1800 m

History

Introduced: 1999
Production status: In production
Country of origin: US
Designer: Ronnie Barrett

Features

Free floating barrel
Fluted barrel
Picatinny rail
Muzzle brake
Bipod included
Match grade barrel
Single shot

Safety

Manual safety

The M99 is also available in .416 Barrett, a proprietary cartridge designed to comply with California's .50 BMG ban while offering similar long-range performance. The rifle uses the same match-grade barrel profile as Barrett's semi-automatic models. A 29-inch fluted barrel variant reduces weight further to approximately 10.4 kg. The M99 is popular among civilian long-range shooting enthusiasts and is used in some EOD applications.