How do you get the thing on top of the bearing out of the way on the Northstar?
You have to pry the spacer off some people I have heard can put a tack in there and just wiggle it off. I used a better knife to get in between and was able to make a little space. Be carful and don’t force it.
Better than what?? 
Standard Marine Corp issue bayonet?
(mine could use some sharpening)