Talk:Damage 1.0/Serrated Blade Damage/@comment-5203058-20130723120129/@comment-175.156.197.215-20130724130204

No, weapons with inate armor piercing damage (Not armor ignore, they're different) deal that set amount of that type of damage, then deals any extra damage form mods, including armor piercing mods. Just like any other weapon.

To the original question : Armor piercing is not as important to weapons with armor piercing/armor ignore as they can already deal good damage to armored enemies. that said, they do add that percentage of "armor piercing" type damage to your attacks, meaning that armor piercing mods are generally very good. (In a complete reverse of the norm, the pistol AP mod is the worst.)