Try it, can't hurt anything. Particularly if you get lucky and it just "drops in" and functions correctly. Of course you know any safety device needs to be fit by someone who is competent in what they're doing. And, if you fit it to this sear, it may not work properly in your CD. I'm not familiar with the CD safety, does it not require the proper right side grip to help hold it on? Suggest you take it to a gunsmith. By the time you're done, $50 may be the cheapest way to go.