The company I found them at in Wal-Mart was Treehouse Outdoorsman. They had different arm construction then with a plastic rivet shoulder, swivel angled elbow and swivel wrists. This past year some of the same sets were at Walgreens pharmacy and Wal-Mart but now with the RAH style arms, but more rubbery hands like modern RAH Joes.
The heads aren't that great sculpting wise but they are compatible in size but have swivel necks. The torso is detailed but looks weird without any modifications and almost all of them have the same 1 or 2 torsos. The waists look like a giant diaper. I don't know why. I've never used those. The legs are pretty good but not nearly as detailed as the most plain GI Joe.
Besides being cheap, where these sets excel are the accessories. Camping and out doors kind of accessories but also some really good civilian vehicles. I have the Chevy Avalanche in red which you cna see
here. That one has been customized with a clear windshield, all of these have solid black windows, and the lights on top. Opening doors, opening rear gate,sturdy construction. There's even a pontoon sea plane in the line.
Edit: No, the back doors don't open.
