If you are in San Antonio:
1. Check out
www.texastactical.net - Mike Webb runs a carbine match, IDPA style on the first Saturdays of the month. You can shoot your AK in those.
2.
www.rivercityshooters.com - once in a while runs a three gun match or a carbine match.
3. Sounds like you are in the service -
www.krtraining.com sometimes brings in long arm instructors.
4. Steve Moses and Paul Gomez do AK classes around here. Also Rob Pincus - may know some TX opportunities.