Check out this link to a Czech-made machine gun for scale models sent to me by Scott McGowin...
http://www.jetarrows.com/page.phtml?go=mcg&lg=enMicroGun MCG05 is a modeling "machine gun", which imitates fire from weapons onboard models of airplanes, helicopters, ships, tanks and other modeling fighting technology. 6mm rounds for the START 6 starting gun are used as ammunition. The magazine holds 40 rounds, and with the help of a regulator, included in the packaging, it is possible to set the rate of fire from 2 to 16 rounds per second.
