Just got a http://www.3bucc.com/ brass catcher and have to say it has to be one or the best catchers I have ever seen.
The catcher I got is for a flat top but was for a AR and not anything with a side charge handle.
But I was not going to send it back for that.I cut a small section of metal frame to make a
section open to let the charge handle clear.
The mounting is so sturdy that it made no difference cutting this section out.
Emailed 3BUCC to see if they would consider making a model like this.
Will try it out today and see how it works out.