Gurps SOE Weapons?

[Tessen]

I was wondering how effective some of the weapons issued to the SOE were?

For instance the thumb dagger and the punching spike? Where they actually used operationally in the war?

I also believe there was a fold up mini crossbow that fired short steel mini bolts and small grenades called beanies.

If someone has the gurps stats for these that would be helpful to.