XM8
[img]http://www.cherrys.com/pedpics/S223b.jpg[/img]
dont say musket its a specific kind.
[QUOTE=PrismatexV6;16317158]Mac-10
[img]http://www.army.lt/guns/XXI/gyro3.jpg[/img][/QUOTE]
That would be a gyrojet rifle.
[img]http://www.shootingtips.com/NewFiles/article/Vain%20Illusions%20of%20Inventors/Gyrojet%20&%20Rocket/gyrojet-Mk2.jpg[/img]