Where to find AK handguard retainer
 

I'm looking for AK parts specifically the ones for the barrel portion. I tried to search for the airsoft version and I cant find any except WGC which is out of my list. Firearm parts are only found in US but all retailer are too lazy to write the $100 exempt from ITAR.

I'm looking for Lower Handguard retainer (preferably the ones that use real takedown not grub screw)

http://www.wgcshop.com/WGC_Shop/images/lct_pk_35_m.jpg