If, on the other hand, you want to get a 6" barrel on your Model 29-2, the change is not that big a deal for a gunsmith with the proper tools and skill. I had my 29-2 changed from a 4" barrel to an 8 3/8" barrel way back in the '80s, and it worked fine. I wish I had the shorter barrel now, but that's a different story that is unrelated to your question.

Froggie