Mayoi Neko Overrun!
Mayoi Neko Overrun! (lit. "Stray Cat Overrun!") is an anime series based on the light novel and manga of the same name. It started airing on April 6, 2010.
Guards armed with M16A2 with wooden furniture.
M1903A4 Springfield sniper variant
In one sequence the gang are charging, armed with M1903A4 Springfield sniper variant .
Heckler & Koch UMP
They are armed with Heckler & Koch UMP.
In the right corner it's seen that one is armed with a Rocket Launcher that resemble a little bit of the Lewis Gun Aircraft Version.