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Barrett XM109
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 .〔
==Overview==
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 25 × 59 mm grenade is used in the XM109 and the cancelled XM307 (product of the Objective Crew Served Weapon/OCSW program). As with the XM307, the XM109 can be reconfigured back to .50 BMG.
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").
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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