Drop down SORT function for the front end

Hi,

I can't find a plugin with a proper drop down "sort" menu for the front end.

I want my users to be able to sort thru my recent posts via custom fields.

I have the Advanced Custom Fields plugin, so I have all the fields needed to make this work.

Yet there is no plugin that will sort my posts for me AND provide a simple front end drop down menu.

Does WPMU DEV have anything that can help me here?

Would greatly appreciate any help/advice,