This is a posable, high-grade or better injection-plastic kit of an item from the Gundam universe.
Unlike the recent TV shows which have been set in some alternate Gundam universe unrelated to the original show and the "One Year War" featured in it, 08th MS Team is the One Year War. Featuring ground combat between Gundams and Zakus running around in jungles, it has quite a different, more claustrophobic feel from that of the space-based shows we've seen so much of lately.
The GM seems to exist only to get blown up by bad guys -- at least that's been its fate historically in the Gundam universe. This kit is up to all the usual Bandai quality standards.