how to add rails in g17 frame? where can i buy it?

i printed one frame but dont know.how to add steel rails in it

1 Answer

You'll most likely need to machine them.
There are some companies which sell Glock kits in an unfinished state. They embed rails into the frame during manufacturing. I doubt anyone is selling just the rails since they are a non-replaceable part: https://www.5dtactical.com/g17-glock-80-build-kit-p/5d-g17build.htm

A photo of some Frame Rails is attached.