Strange laser head

Hey guys i am wanting to upgrade my laser head, i have the new FL-K40-D with air assist and manual bed lift end stops red dot etc, but the laser head is quite different and the lens gets dirty easy, so wanted to upgrade to something better, but not sure what will fit, any ideas please. apprantly i can only upload 1 image so hope this is visable,

You can upload more images now. The forum protects against drive-by spam with that limit. (Yes, sadly, it’s a real problem.) Going through the discobot tutorial you are offered enables more features; most spammers can’t be bothered.