Anti-laser armor works better against lasers. Reflec's quite lightweight as well.
They've got so many lasers that one has to assume that their regular armor is designed with lasers in mind.
One also has to wonder if lasers actually are better at penetrating armor or whether that's just a sci-fi trope?
So far the industrial lasers we have, which are far larger than can be carried on a vehicle, don't punch through steel any quicker than a tank gun. I couldn't tell you whether's that due to current laser technology, or something about lasers themselves.