The Kree Battle Axe is a weapon commonly used by the Kree.
Thousands of years later, after Hive sent out a signal using a Kree Orb, a Kree Reaper killed Alisha Whitley and a couple of HYDRA agents using a battle axe. He also uses it in a fight against Daisy Johnson and loses. Another Kree Reaper uses a battle axe to fight Hive but he's disarmed and killed by the later.
On the Lighthouse
When Kasius met with Mackenzie and Yo-Yo Rodriguez to negotiate their surrender, Hek-Sel and another Kree guard combined their Battle Axes to create an invisible energy barrier which blocked Rodriguez while she was moving at full super-speed and protected the Kree from an explosion.