I'll go out on a limb and say they will swap out.
I don't think you can buy just the medallion grips alone though.
There's other really nice looking wood grips out there though for the Buckmark.
It is a pretty little bugger I have to admit.
I bought it in 1999 at Christmas time. Next year when my grandson turns 13, he'll get to try it out for the first time.
P.S. - in answer to your question, no. The trigger has a disconnect (so it won't go full auto) so you can't ride the slide down.
I just tired it on the Plus.....that's the first time the trigger has been pulled on it - other than the factory test fire, BTW.