Are they? I've only really dealt with SP (sft onwards) gats the new ion's etc have a sticker in the frame, Ego's have it just under the rammer (if my memory is working) it's cut from the body.
The point I was making, is that if someone asked me if my shocker was laser engraved I would say no (unless it was my hybrid in which case it is) as I'm sure many would.