local explosionPart = script.Parent
local explosion = Instance.new("Explosion", game.Workspace)
explosion.Position = explosionPart.Position
explosionPart:Destroy()
I have successfully made a missile using this script. I have made other scripts that allow it to be fired from a closed tube and to prevent it from explosion instantly, but that is not the point of this question.
How would I change the values of the explosion? blast radius, etc.

2 comments
A problem I faced was that I had to set the explosion's position before I parented the explosion. Try and see if that's the issue.
That is not my problem, I want to change values and I am not sure how.