Lily's Assault Carbine

The  is a weapon in Fallout: New Vegas.

Characteristics
Lily's Assault Carbine has the appearance of a normal Assault Carbine with a suppressor mod.

Locations
Lily has it, but it's hidden because it's a non'playable weapon, but you can probably use console commands or try entering casinos back and forth to obtain it.

More importantly, it does not seem to use the same 5mm ammo as the regular assault carbine, instead the ammo used is something called MCA.

Appearances
The appears in Fallout: New Vegas.