I have some markings on my Interarms AK47 that are interesting. On the trunnion, there is an 11 in a circle, followed by 1980BA2 and then 4 more digits for the serial #. On the bottom of the receiver, in front of the magwell, are the numbers GP-C502690. This has me confused. I assumed these were Elk River receivers, but isn't the Circle 11 a Polish marking? Browsing the web, I found the same AK with Maadi markings. So, do I have a Polish AK? All of the internal part numbers match the last 4 digits of the numbers on the trunnion. I'm assuming the barrel is a Green Mountain, and it is chrome lined. It has a Tapco G2 trigger, and surplus red wood furniture. So, what are your thoughts?