GSG-5: Attaching Sling to a Collapsible Stock

[gsg_seattle]

Greetings -

I just purchased a GSG-5 rifle, and a collapsible stock and three point sling. I want to attach the sling, but cannot figure out how (there were no instructions).

From images of an MP5 in a sling I found (attached), I see a small bracket that goes into the stock mount that the sling attaches to - and one like that came with my stock - but I cannot figure out how to get it in there...

Anyone? I would be very greatful to finish putting my new plinker together...

Thanks!

Seattle