The Missile Rifle was created for a short film called Sicarius. It was custom designed and CNC milled for the film, and measured over 4 feet long! In the film, it fires missiles rather than bullets so it was meant to be a huge gun. The paint job was an unconventional white and black approach with stripes of green to set it apart from other weapons in the film.
It was also made to work with existing rifle accessories like a scope and bipod.