19:25
Fun fact: For movie use, armorers slow down the M134 minigun's rate of fire to conserve ammo, and to allow the spinning barrels to be visible to the movie audience, with a hidden power cable for the firing scenes, and using blank ammo to ease recoil. Nonetheless the prop is still extremely physically demanding, hence the actors wielding it were physically imposing and often had bodybuilding backgrounds. Generally such depictions will totally ignore the weapon's need for external power, and sometimes even forget that it requires a source of ammunition. In practice, a man-portable M134 minigun would be nearly impossible to manage as an individual infantry weapon, and highly impractical for a human being to either carry or operate. A down-scaled version of the M134, the XM214 Microgun, never reached production status for such reasons.[39]