Quote Originally Posted by SuspectimusPrime View Post
It's too bad they didn't use the Samurai Armour mold - it doesn't makes sense for Prowl to give up his armour for elite guard status!
I'm sure you could make some excuse for it.
Maybe he has been rebuilt and given new life from the All Spark on Cybertron at the end of the series. So he doesn't have his armour