This may be a trivial question for you guys however:

I just bought an LE No 4 Mk 1. The furniture wiggles around the barrel/receiver A LOT - i.e. down at the barrel end of the front handguard the barrel can move up and down at least a quarter of an inch.

Is this normal?

I have handled other LEs that don't move at all. If it's not normal how do I fix it? Do I have to replace that shim thing that you showed pictures of on this thread?

Thanks