I wasn't providing an opinion on whether he'd be caught or not. I was just trying to correct the record. Contrary to what some are saying, he didn't swap one factory part with another. I agree that that would be fine.
He removed material from a factory part. Some people are saying that is illegal for Production Division. I just reviewed the rules, and I think I agree with them since the rules say modifications are not allowed unless specifically authorized. In other words, you can't infer it's legal unless that type of modification is specifically mentioned.
No where in the rules does it say you can remove material from a decocker, or for argument sake, a factory safety. The rules also don't say, it's legal unless the RO catches it, but I guess you could say that is the practical result.
I didn't look at his pictures so I have no idea how much material he removed.