Projectile life Time

Hi guys i am working on a new grenade, the last thing that i need is the projectile life time. Default is a time frim 5 seconds i like to chance it to 10 seconds. I can’t find it on the Blueprint. I hope a modder can help me here.

You already said what it is -

I have think that is it but i can isert here 600 and more and the grenade is exploes after the same time.

There must be something internal on grenades then. Never messed with the life on them but have on other projectiles so I know that setting does work for the rocket