Uncle ray,
Imported from the states.
I believe they where allowed for service shooting if brought at own cost. remembering that i at least know very little of how the swiss forces operated and they seemed to be a bit more forgiving in allowing extra equipment to be used.
I am keen to get it on my K31icon when it arrives, a dealer in QLD is importing them from germany.
contact on my e-mail if interested
thekellyclan2@bigpond.com

They are very popular at my club here in the west and have been proven to be more accurate then even a swede mauser.
cheers
NED