I have several of Yankee Hills flip up sights for sale. They are all priced at $65.00 plus shipping.
The Forearm mounted flip up front sight - YHM-9627 - $65.00
The Gas block mounted flip up front sight - YHM-9584 - $65.00
The gas block with integral front flip up sight - YHM-9394 - $65.00 with or without bayonet lug.
The A2 Flip rear sight - YHM-9680 - $65.00
The A1 flip rear sight - YHM-9680-A1 - $65.00
Pricing while supplies last or 12/15, whichever comes first.
email@example.com for any questions or orders.