I read about this one on a good FS site but I could be wrong. I thought that the reason the FS had a bad rep was because US made versions were made mostly by Germanicon immigrants who sabotaged the heat treat. I will double check my sources.

I have a brit second pattern FS and a new nato one and the second pattern is loads better.

Now that I really think about it maybe it was the USMC dagger?
Was it issued in the same pancake flipper sheath?
Heck maybe they were both on the same page.

If so I am really sorry about dissing your knife.

I also really like the M8A1 sheath for a combat knife but I have one with a nice M3 dagger and the strong spring that is so good at holding the knife in place puts big marks down both sides of the M3. Not a big deal for a soldier but for a collector it is like torture.