...whre do I get one of those miniguns?

With the introduction of the 5.56mm ammo into the military service, Americans attempted to scale the the Minigun further down, resulting in the weapon, known as XM-214 Microgun. This little beast had 6 5.56mm barrels, was electrically driven and could fire up to 10 000 rounds. But the 5.56mm was way too weak for air-to-ground or ground-to-air (anti-aircraft) applications - the key niches of the modern Gatling systems. For the infantry, the Microgun had almost no use, being to heavy, complicated and with too much rate of fire and recoil (recoil force was up to 110 kg / 240 lbs at the full rate of fire). Infantry simply does not needed an extremely rate of fire to deal with the enemy infantry, and for AA use (where such high RoF makes sense), the 5.56mm (.223mm) and 7.62mm (.308) ammo is way too weak.

does anyone have more photos of this? the only one i saw was on the news.