Hey Guys I have a saiga that has been converted and I was wanting to change the furniture on it, will I need to look for saiga specific furniture? or will standard AK furniture work?
Yes and no. Please Note: If your rifle is relying on USA made furniture to keep it in 922R compliance, then replacing furniture with foreign parts may take it out of compliance and produce an illegal rifle.
Buttstock - Good to go with any standard buttstock that is for a stamped receiver AK
Pistol grip - Any Pistol grip for a standard ak, as long as you have a grip brushing and screw (since yours is already converted, I assume it already has a brushing and screw).
Lower Forearm - In order to get a standard ak Lower forearm to work, you will need to get a lower forearm retainer to secure the lower forearm to the barrel. Some people use a hose clamp (ugly), a press-on type (requires removing the front sight = hard). OR use a clamp-on retainer, like this one: http://www.dinzagarms.com/saiga_762x39/akbor1.html
Upper Forearm - This requires a switch from the stock gas tube to a standard gas tube. I've heard that the Romanian gas tube is a drop in replacement