I'm fairly new to AK's. I purchased my first one earlier this year. One feature I was missing was the bolt staying open after the last round. I recently learned that the Yugo magazines have a different follower that holds the bolt open after the last round. I ordered a couple Yugo 30 round mags and they work great. I have a few Hungarian 20 round Tanker magazines I wanted to modify to hold the bolt open so I started looking for a way to modify them. I found an old thread on another site that talked about replacing the magazine followers. That thread gave a source for the followers and I purcha