Robski of AK Operators Union 47-74 posted updates on his WASR 10. It is now over 10,000 rounds.
Another AK, this time owned by Rife Dynamics's Jim Fuller, is now put on retired status after shooting over 100,000 rounds. It had several springs changed.
http://www.guns.com/2017/07/24/this-ak-has-burped-out-100k-rounds-and-has-earned-retirement-photos/
From: AKOU 47-74, Guns.com