For a weapon to deal with Batman, it had to first take speed into account; it had to be as close as possible to what happened in actual combat.
This special weapon wasn't really meant to be used on Batman, but it had to be tested first.
The weapon had been tested against the defenses on Tony's suit. However, Luke's behavior today had triggered Jarvis's main defense program, and the A.I. had decisively taken out this experimental toy and pointed it at Luke.
Even Luke felt a chill run down his spine.
It was clear that this weapon was powerful enough to cripple him.
So, the first thing he wanted was for Jarvis to remove this thing.
There was no way they would be able to have a pleasant chat otherwise.