The short answer is no. Bob's gets a few things, Numrich occasionally. Tristar used to have some boxes of stuff if you could twist someone's arm enough to look. To repair much of anything these days, you are in the same situation as the made for measure crowd, buy a similar gun for parts, get a high dollar gunsmith to convert an AYA part, or make one from scratch. The only advantage to you is that there are lots of Zabalas around. Beware however. Kyrie helped me out by making some measurements. We found that guns which I would have suspected had almost identical measurements were vastly different. My idea that Zabala's factory mechanization would have resulted in standardization, was blown out of the water. When you buy something for parts, ask for dimensions or look at it in person.

 

Thanks volleyfire. Sort of thought that might be the case.