Can you target equipment attached to Ruin Runner with Salvage?

Ruling: Yes. When you play Salvage, you are choosing a gear as the target, not the unit it is attached to. Ruin Runner's protection ability ("I can't be chosen by enemy spells and abilities") only prevents the unit itself from being chosen, not the equipment attached to it.

Nuances:

• Targeting a gear attached to a unit does not count as targeting that unit.
• Effects that require choosing a unit (like Angled Shot) would still be prevented by Ruin Runner's ability.