I think the ironic thing is that you are using them if you use the original ones which came with your gun.
I have seen the list and it covers nearly all major manufacturers. Mec_Gar makes them for them.
Yeah, you can say that, but give me the definitive list of what pistols and manufacturers for whom they produced. I don’t want myth of “I think so” or I’ve ‘seen’ it. Show me a list.
Glock? Ruger? S&W? Colt? Beretta?