Artisan Archive

It's just random, and considering you'll have 30 combinations for muzzles, you'll need to craft some 300 muzzles to get a real decent distribution I think. As for type of material.. hubbub. I don't think there'd be special code in the powerup crafting section beyond the random attributes based on material choice. I also haven't noticed anything being more difficult to get.. it's always difficult to get the one you want. And lastly.. on Lowca, lube makes great powerups because you tend to find high OQ lube (probably because Fiberplast and Polymer are specifically called for all over, and I don't think lube is.)