There is actually a P-Bandai Dragon Gundam HG kit, from G-Fighter.
The HG Altron used to be P-Bandai, but became a standard release along with the Deathscythe Hell and the other customs. Note that the product images are more teal (blue) than the model, which is more of a sea-green.
Aesthetics:
Tons and tons of color separation with only minor color corrections via stickers. The colors are vivid and the silhouette is great, a much more elaborate kit than most of the HG Wing kits. It benefits heavily from panel lining and while there aren't a lot of stickers, there are a couple of spots on the legs that could use some grey paint, as well as the all-white vents on the sides of them.
Comes with the usual foils and also eyes for the dragon fangs on the arms.
Mechanics:
This is basically the Shenlong Plus Edition, it does all of the same (big forwards bend, moving chest, dragon arm), with double the dragon fang arms and now also a winged backpack with an articulated 'stinger' beam gun.
It poses great, it can hold all of its stuff and the arm extensions work perfectly fine. The arms can extend from the shoulders on their own and there are two extenders for each arm, that you key in between the parts to make them even longer.
Equipment:
1 double-ended Beam Trident, which is pretty huge compared to the model
1 folded up Beam Trident that can be stored on the inside of the right wing
1 Shield that's stuck onto the left shoulder on a ball joint
4 arm extenders, two for each arm
6 hands - 2 open, 2 holding hands and 2 thumb-out holding hands from the Sandrock
(not a lot of equipment, but it's the 'Dragon Fang' flamethrowers on the forearms that are the 'real' equipment)
Conclusion:
I never *really* liked the Altron, largely because Chang Wufei was always a hard to like character, but both the HG Shenlong and Altron are pretty cool. The color separation on the Altron especially is great, notably the gems on the shoulders being red on yellow on green, unlike the sticker gems on the Shenlong.
The more time has passed, the more I appreciate and like the mobile suits that I didn't like as a kid and I'm happy to add the Altron to my collection of Gundams, from Gundam Wing. Maybe one day we'll get Master Grade TV editions... one can dream (unfortunately they're making EW HG kits instead...)