Hmm, before you do that.
I have a couple BM's i absolutely love, however there is a small problem with the design of them with the axis.
Bear with me, it is only a problem if unintentionally squeezed the right, err, wrong way.
The blade stops on the axis bar, and when in a closed position, and the blade back edge is squeezed into the knife, it creates a alot of force on the axis bar and will overcome its park position, and force it to move and allowing the blade to sink further into knife handle and touching back spacer.
Dont believe, try the test and look into the end of it whilst squeezing it.
I have several, and my friends knives aswell can all be overcome.
Note, i do not recommend doing this too much as it will wear the softer metal liners and create notch in the liners.
No knife is meant to be squeezed, but it does happen.
This will be the mark you speak of.
No harm, no foul.
I edited this.
I mean to add,IFthis may be being caused by a squeezing, AND NOT improperly assembled, if the latter is the cas, then do send it in and disregard my post.
Peace
WR
