You might want to consider mentioning what series McD cue you are looking for... I have 2 older E-series cues and these use a different weight bolt style than some of the others. McD has changed it at least 3 times that I'm aware of and I'll bet there might be more
Good Luck with your search!
-Joe
PS - I ended up having a machinist friend make one out of aluminum and one out of nylon to lighten up my cues to the weight I was looking for.:thumbup:
I previously bought McDermott weight bolts from Chuck Dvorak ( worktheknight ) and he also did have the bumpers available. Great guy, you should pm him about it.