Many laughed at the idea, others considered it heresy, but the day the little pony joined the boarding action reclaiming a lost Marine Battleship was the day all detractors were silenced. For no one could claim as many fallen enemy as she, to the glory of the Emperor!
@97blackbird True, but I don't think they have to earn their paint scheme… Though judging from it's size, and the fact that a pony, a pegasus no less, can fire it without breaking all the bones in their body tells me that this bolter is either for the Soroitas or Inquisition, who are just the kind of people to think that weapons need to earn paint schemes.
I am questioning the minimal amount of paint, iconography, and other decorative/spiritual additions to that bolter, did she just grab a freshly built one out of a Mechanicus forge! Cause if so then how did she manage to grab it without being beset with angry tech-priests and/or being "asked" to hand it over for completion, cause the Mechanicus take their pseudo-religious manufacturing process very seriously.
(Perhaps she just asked my friends in the Darkmech for one, though if that were the case then why is the bolter not glowing with chaos energy and have the face of a daemon mounted to the barrel.)