I'll take a stab at this, if I'm wrong, hopefully someone will step in and correct me. To stay 922r compliant your Saiga can not have more than 10 foreign made parts. Adding US made parts does not help with compliance, unless they are actually replacing foreign made parts. As I understand it, the Saiga is composed of the following foreign made parts that are counted by the BATF:
1. Reciever
2. Barrel
3. Trunion
4. Bolt
5. Bolt Carrier
6. Gas Piston
7. Trigger
8. Hammer
9. Disconnector
10. Buttstock
11. Forearm/Handguard
The Saiga factory mag and any foreign made mag will coun