For once, a simple question I think...
The Ares Viper Slivergun lists its damage as 4P(fl) [after errata applied] and its Attack Ratings are 12/8/6/-. The rule for flechette ammo is it increases AR +1 and decreases DV -1.
Can I assume the flechette mod has already been applied? That is, in some alternate reality where the Slivergun fired "normal" ammo it would be 5P and 11/7/5/-?
Also, I'm assuming that the cost of ammo for the Slivergun is heavy pistol+flechette, that is 10 nuyen*1.5 = 15 nuyen per 10 rounds. Is that right?
Sorry if someone has asked this already.