Banestrike Fusilade
From Warhammer 40k - Lexicanum
The Banestrike Fusilade were a pair of bolt pistols that were wielded by the Sons of Horus Captain Vheren Ashurhaddon, during the Horus Heresy. He personally modified them so that the Fusilade could fire the deadly Banestrike Bolt rounds that his Legion made use of.[1]