I tried to order one of those stocks for my Glock 19. Here was the Austrialian company reply.
We are sorry however due to Australian Customs Regulations we are unable to sell this item to anyone other than Military or Police Departments (Individual officers are not eligible)
Sorry we cant help,
From: Lowdrg84@aol.com [mailto:Lowdrg84@aol.com]
Sent: Friday, 7 October 2005 11:21 PM
Subject: Glock parts
I am interested in purchasing a retractable stock and forend grip for my Glock 19. How do I do so, if it helps, I am active duty military.
I don't know where you can get those but I do know that you need to register your Glock as an AOW/SBR before you can add a stock or a forearm grip. Being Active Military unfortunetly doesn't matter.