Well I can’t comment on that particular LDI laser, (other than it’s very cool AND very “old”.) I’d like to have one just because. History?
I can personally stand up for LDI lasers though. I got a MP5 cocking tube one 10-12 yrs ago. It is most excellent. I put it in/on my “neutered” 33 when I went with the Surefire hand guard on the “neutered” MP5. Of course it is so much brighter and projects farther than a CT laser.
I’m positive your older LDI laser is of very high quality. They were extremely high quality and very intense. So much so that “they” tried to make the latter ones illegal as the lasers were military grade. Dumb bunnies, aircraft and such I suppose. Like yours the HK cocking tube examples haven’t been available for years.
The little one I have has held up perfectly and true to POA. The one you have obviously looks even more indestructible.
I hope this doesn’t get into laser is nonsense and useless discussion. I think that is a very cool piece of laser history from a premier manufacturer.
Jim