Bob, my preB75 has not had any grinding down to the well. But it did come to me missing any sort of mag brake. I made a flat one up from some thin stainless sheet I had as per the one in my Shadow. My new 10 rounders all fall out cleanly other than one which I can feel a slight misalignment on between the steel and plastic part. Just need to clean that up a touch.
What year is your Pre-B? It may be a transition. Mine was made in 1988 and was a transition 85 Combat. If it is an earlier model then I am fairly certain the magwell would have been opened up at some point.
Take Care
Bob


















































