You might find it's often hidden under 'Emotional Regulation' for a lot of therapists.So really, what does it look like?
DBT takes this to the next level, teaching a whole range of interventions that can be put in place to avoid the angry outburst altogether, and healthier options of things to do with those our of control emotions.
Well short of doing a 6 month DBT course? CBT practitioners often teach SUDS as a really useful way to avoid the outburst by learning how to recognise and act on the subtle build up (PTSD Cup in practice) that precedes apparently spontaneous aggression.
Longer term, therapy can help deal with the things that are causing the emotional bomb to build up in the first place. Processing with triggers can also be immensely helpful when its a specific trigger, rather than stressors, that set the aggression in motion.
Anger is an emotion, and the 'angry outburst' (or aggression) is only one way of expressing what is fairly standard among basically everyone with PTSD: the fight/flight response that our over-active amygdala keeps triggering. For a lot of folks, the freeze or flight options are the ones they'll be familiar with, but fight is just as common.
Treating ptsd necessarily needs to deal with that. They don't call it Anger Management, just like they don't call it Flight Management - but treatment of both is part of PTSD treatment.
Further afield? Any disorder that comes with emotional dysregulation typically has some mechanism for approaching the issue. DBT was designed for Borderline Personality Disorder, for example, where emotional explosions (often including aggression) are also par for the course. So even if your T isn't a trauma specialist, helping manage angry outburst will usually fall within their skillset.