Hi,
I have a friend who needs the specs for this safety, he´s a gunsmith and he´d like to see if he can make a "better mousetrap". He´s old though and the Internet just isn´t his thing.

Is this a thing one shouldn´t ask?

It's not that one should not ask. But that the safeties are cheep enough you could buy the chapman, wisner, and the PMS brand and still not invest more then $100.

I don't mean to sound arrogant but if your buddy is capable of building a better mouse trap he should be capable of getting a safety and figuring it out. It's not like these things come with blue prints and we just have a copy laying around. No one replied most likely because they just don't have the info you're looking for.

My suggestion is take a look at this
PMS safety

It a site that has a good over view of how the safety works and how to install it.
It may not be a print but it's better then nothing

Sounded to me more like he wanted the specs for a Three position one; like he wanted to manufacture a new one.

Is that correct Suomolainen? Paiva