This is a US Army project to develop a ridiculously overengineered, very science-fictional-looking firearm for the individual soldier. It is to become the successor to the M16. Currently, different designs are being evaluated.
The OICW is to consist of a launcher for smart grenades and a conventional rapid-fire rifle. Some designs propose that the rifle should be a removable module. Then, the weapon will be incredibly computerised and wired directly to the soldier's backpack computer. The goal of the whole shebang is enabling the individual Land Warrior (the Army's designation for "the infantry(wo)man as an integrated weapons system") to engage targets at any distance up to more than 1000 metres. Critics consider the entire OICW a rather catastrophically misled design. The grenade launcher, with a caliber of probably 20 mm, will launch grenades to small to do anything meaningful, considering that there will be a complete guidance system inside (100% silver bullets), the entire beast will be too heavy, and a nightmare to maintain and supply.
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