It was packaged as the "Build-a-Figure" for ML wave 15, meaning you have to buy six different action figures (Moon Knight, Beta Ray Bill, Wasp, Spider-Woman, Thor-Buster Iron Man, and Captain Marvel) to get the parts to build MODOK. I used to collect action figures, and distribution of these things is abysmal in my town, so I pretty much assumed I'd never get a MODOK.
I never saw one of these in Target, Wal-Mart, or any other major retailer. Luckily, I was taking a different route home from work last week, and in a little strip mall, I noticed a new toy store. I went in and they had all six for not too much above retail, so I snagged 'em all.
And I built my MODOK. The six figures are pretty nice, with Beta Ray Bill being the best. Most importantly, MODOK looks GREAT!