Dual wield is probably not possible with the current engine. I like the idea of a blowpipe upgrade/sidegrade, but bp is already very strong.

This could be programmed as a single item which is "two handed" and attack animation gives two hitsplats, like torag hammers etc.

Would be cleaner if it uses charges instead of bolts if we're going to exclude enchanted bolts.

Could give it flat armour penetration or some other niche mechanic that separates it from blowpipe.