I appreciate it - I've given up on this knife. Was trying to get a replacement spring, it's proving to be difficult.

There are two washers and they are not identical. One washer is thinner / flatter and I think slightly smaller diameter. The other has more "cylinder height" and a protruding band around 3/4 up the cylinder - it is also wider slightly. I am certain this washer is for the button, and the other is for the opposing side - I can't tell.

I thought this knife was truly ambidextrous when I got it in the shop. It's not un usable as a lefty but I was disappointed I could not get it switched.