I'm not really a fan of changing the Mozambique in it's current state but I'll give my opinion if they need suggestions 🤒
The Mozambique is on the lower run ranks but i think giving it a dual wield won't solve the problem.
The reason why is because the Mozambique has low-mid damage and is not really forgiving when missing a shot.
What dual wield could do is make it much forgiving but you cannot double the damage as this would make it to strong.
I would made look to increase the clip size and make it scale like the light ammo guns that need attachments to be effective.
This would give the Mozambique more use in mid-end game without getting the chance to make it overpowered in the early game.
A small buff in damage from 135 DPS to 150 Damage per Second and maybe the Empty Reload time from 2.6s to 2.0 second would make already a great change.