You may find something a bit more specialiaed...
A place like this sells lasers that aren't necessarily pen pointers. You might find something slimmer.
I'm not familiar with a 686 of that configuration so as far as how to fit it I couldn't say. Getting structural integrity and the laser lasting more than a few shots... you got me. Have fun, but don't do anything you can't back out of.
"He was kinda funny lookin'"
Last edited by rwsmith; 04-20-2017 at 08:37 PM.