Is there a way to reward Items based off scoreboard points?

I am making a server based on PVP and I have set up a scoreboard that displays a players kills. I was wondering if, say for example, a player reached 50 kills could I give them a reward? (e.g diamond axe)

I have tried a bit, but I am stumped. I tried give @a [scores={kills=50}] minecraft:diamond_axe but it doesn't work. I did make sure to set my points to over 50.

The scoreboard is called "kills" I am on 1.15 Java Edition.


Your command only checks if your points are exactly 50. To test for values more then 50 you need to write: [scores={kills=50..}]