Please make a Welcome post in the Welcome sub forum if you expect people to take time to help or advise you.
Not sure what you mean or if same exists. Not many people want a press fit no heatsink host however here are a few 12mm DIY small hosts.
Do you have a link to an example of what you think you want?
Unfortunately I can't post links. But stainless steel 10440 flashlights are kinda what I'm looking for but without the bulk of a heatsink, kinda like a pen laser with a flashlight style clicky on the back, hopefully this helps
Sounds like what you envision does not exist for several reasons.
Maybe find a flashlight you like and PM lifetime17 to see if lhe will/can modify it into a laser pointer for you if he thinks it will work/is possible with whatever mW diode output you want.
See lifetime17s work in this thread https://laserpointerforums.com/thre...-adapters-lasers.100082/page-118#post-1584672 he has made some nice 10440 powered hosts at very reasonable prices -maybe you will like one of them