I've just had the Glock logo put on my WE G18 by Timpsons. Looks like it's been laser done, very neat. Will take a pic and try and post it up. I know the manager in my local branch quite well as I work in the high st and we send each other work so thought it was worth asking. He checked and was told no problem to do it. Well worth popping into your local branch and have a chat, if they aren't sure tell them branch 106 got it done. They will just want the receiver , as stripped down as you can and if pos supply any logos etc in digital form.