IM would be the best way to get me.
Here's the story behind them.
I bought them from DSA in anticipation of buying one of the STg-58s. When I got the money together to order the rifle, we had one of those unexpected household expenses (sometimes I miss renting) and I had to spend the money on the house.
I just placed an order for a PTR-91, so I won't need these mags. I've never used them.