Thought I’d start the list, because I know we all like to skim through them 
- https://www.buyusedguns.com.au
- https://www.ozgunsales.com
- https://ssaagunsales.com
- https://firearmsales.com.au
- http://www.owenguns.com/ad-category/used-guns/ (a recent but very cool find)
- https://www.rebelgunworks.com.au (expensive, but has gems from time to time, including old ammo)
Keep it going…
