For instance, California has a handgun roster. If a citizen buys a handgun, it needs to be on a special list. The last time a model was added was 2013 [1]. Supposedly it's to make sure pistols are safe. But if you are a police officer, go ahead and buy a 2019 model! In fact, go ahead and buy a 2019 model, and then sell it for 2X to a normal citizen, if you want. A good side business!
How does any part of that make sense?
I guess the theory is that officers are well-trained and responsible, but where is the evidence of that? And why can't anyone else take the same magical steps to show their worthiness?
[1] Due largely to the "microstamping" requirememt, which is impractical to meet, but required for new models (some very minor variants are still allowed without microstamping). See https://en.m.wikipedia.org/wiki/Microstamping