I see Ruger makes a brass catcher for it too. Will put that in the possible options.I have a Caldwell brass catcher for my AR 15 that works well enough on my PC9
Can you explain how this meliorates excessively strong ejection?This has worked well for me....
https://www.mcarbo.com/ruger-pc-carbine-shock-buffer.aspx
It is pretty inexpensive and it easy to remove it you don't like it or don't think it helps.
Can you explain how this meliorates excessively strong ejection?