Gun parts warehouse?

[mauser]

I hope I'm in the right place to get an answer to this question.
I remember hearing of a warehouse in Texas with a huge inventory of used and hard to find gun parts. (I think I'm remembering correctly when I say Texas).
It has parts that are not available at Numrich, Brownell's or the other common places that we like to look. Can anyone tell me what is the name of that place, or better yet provide a web address or email address?
A friend of mine has an old .25ACP that is missing a retaining pin and he doesn't know where to look to find one. I thought I heard of a warehouse in Texas that has a good supply of parts and thought he might find his pin there.
Any help would be greatly appreciated.

Thanks in advance.

[JenniferG]

Probably this guy.

https://www.midwestgunworks.com/