I am looking for an AK-47 rifle (7.62x39) to test some new subsonic ammo I am working on. I need a 1:10" twist or faster (or the common 1:9.45" twist). I would prefer a rifle that is threaded to add my suppressor to it. A Yugo AB2 or a bolt gun would be ideal. For trade, I will give you some ammo of your choice. I have worked up multiple subsonic loads for testing. Let me know!! PM me here. Thanks!