Does anybody have a list going of what parts on a Saiga .223 are interchangeable with on regular AK-47 pattern rifles or ak-74s or even other caliber saigas for that matter. My main question is where can I find a new spring loaded firing pin for my Saiga .223? The ak-74 ones look similar in some ways and appear to be spring loaded as well. but I don't have any solid data or measurements. Not sure what other .223 AKs have interchangeable parts to saiga either. If you have anything to add that is confirmed, I'd like to make a list If we can. Thanks!