Gangbanger tats are varied. The Aryian stuff is Hitler, SS related. AC (Aryian Circle) AB (Aryian Brotherhood) and many other derivatives. Did not see any of these. If you see an area code, then they are Tango Blast from that area code. Ex: 210 would be from San Antonio. Those are easy to see. Mexican Mafia is MM or EMM. These are harder to see. Pistoleros Latinos have pistol tats with a PL somewhere around. Also harder to see. That is an extremely brief synopsis. This course could go on for 2-3 days. But the Tango Blast are easiest to see. They also have Astros' star (for Houston), Cowboys star for Dallas, Spurs insignia for SA, etc.