|Place of origin||United States|
|Manufacturer||Barrett Firearms Manufacturing|
|Weight||33.2 lb (15.1 kg)|
|Length||46 in (120 cm)|
|Barrel length||17.6 in (45 cm)|
|Cartridge||25 × 59 mm|
|Action||Semi-Automatic, short recoil|
|Feed system||5-round detachable box magazine|
The Barrett XM109 is a prototype anti-materiel rifle and grenade launcher, chambered in 25 × 59 mm, developed by Barrett Firearms Manufacturing. It was designed as a modification of the Barrett M107 and was capable of defeating light armor and equipment out to 2 km (1.2 mi).
The XM109, originally known as the Objective Sniper Weapon (OSW) or "Payload Rifle" (according to Barrett), is a semi-automatic anti-materiel rifle, designed primarily for engagement of light armored vehicles and similar targets. The design uses the lower receiver from an M82/M107, but with a new upper receiver chambered in 25mm. In fact, it has been designed with this in mind. The upper receiver of the M82 rifles can be replaced with an XM109 upper receiver to form a fully functional XM109 rifle.
The XM109 offers greater range and a shorter overall length than the previous M82/M107 systems, as well as potentially greater power in the 25 × 59 mm cartridge over even the Mk 211 .50 BMG cartridge (AKA "Raufoss round").
- M1913 optical rail
- BORS ballistic computer
- monopod socket
- Dual-chamber detachable muzzle brake or suppressor system
- detachable bipod and carry handle
- Gates, Bob. "XM109 Briefing Update May 11, 2004". Barrett Firearms Manufacturing, INC. Retrieved 16 December 2012.
- Official Website of Barrett Firearms Company
- An image of the XM109, Popular Mechanics
- GlobalSecurity.org - M109 Anti-Materiel Payload Rifle (AMPR)
- DTIC Briefing on XM109