Barrett's prototype XM109 packs no-fuss, some-muss light armor penetration into a convenient point-and-shoot form factor that makes lofting 25mm sniper rounds downrange a relative walk in the park for today's workaday infantryman. Going into testing this month, the XM109 uses the computerized sighting-system "BORS" (Barrett Optical Ranging Sighting System) to automatically compensates for changes in air pressure, temperature, and the angle of the weapon towards the target, "taking all the sweat-math work out of first-round shots." Dial in the distance and take your shot - that armored vehicle should go down in the first round.
The XM109 can hold up to five of the 25mm rounds - derived from the dual-purpose (metal and meat) rounds used in the AH-64 Apache helicopter - and can penetrate up to 50 millimeters of armored plating, such as the stuff that protects many of aging SCUD missile launchers.
If given the green light by the armed forces, expect future production versions to incorporate a range-finder, night-vision capability, and sound suppression. (Thanks, Mikegre, you punk.)
Read - WEAPONS OF THE WORLD: The 25mm Sniper Rifle [StrategyPage]