How to get actor compopnent size?

This is the easiest method I have found to measure distances from an actor component (Everything else is a headache).

Step 1: Add Two Scene Component to the Actor

UPROPERTY(EditAnywhere, BlueprintReadWrite)
class USceneComponent *Point1;

UPROPERTY(EditAnywhere, BlueprintReadWrite)
class USceneComponent *Point2;

Step 2: Subtract the world location module and get its absolute value

float AMyActor::GetLength() const
{
	if (!IsValid(Point1)) return 0.0f;
	if (!IsValid(Point2)) return 0.0f;	
	return FMath::Abs(Point1->GetComponentLocation().Length() - Point2->GetComponentLocation().Length());
}

DONE!!