Model 12 Safety Problem

[Doc12379]

The safety on my model 12 has very little detent on it and easily bumped from fire to safe or safe to fire. Is the fix for this a new or heavier detent spring?  Is there anything else I should check for?

Thanks

[Boggus Deal]

They get pretty crudded up. The plunger gets kind of sticky. I would remove the safety button, plunger and spring and give them all a good cleaning.