Got this email from Midway.
CCI Small Rifle 5.56mm NATO-Spec Military Primers #41 Case of 5000 (5 Boxes of 1000)
Discontinued Product Notification
You requested we notify you when this product was back in-stock; unfortunately the product has been discontinued and will no longer be available from MidwayUSA.CCI Small Rifle 5.56mm NATO-Spec Military Primers #41 Case of 5000 (5 Boxes of 1000)