The name of the label is Yun-Gun Productions. They don't have a forum here. Would be cool to see one for them in the up and comers section. Yun-Gun's album was tight as fuck.
The Yung Gun cd (16 Shots Blocc to Blocc) was put out in conjuction with 2 Face Entertainment, who also put out releases from Gemini (Casualties of Life) and Doom (Welcome into the Night).
YG posts up on the Siccness sometimes, so you can holla at him here, but for more info on him and other 831 artists, you can check out the following: