There are only two types of people:
1) those that read this forum and learn
2) those who don't and won't.
I had my first LEO job at 19 (I'm 62 now and retired) as a Federal Wildlife Aide (Federal Game Warden). My first "come to Jesus" opportunity came about three months into that career and I came away from that encounter with some life changing information. The first was that I was going to go home every damn night, employed or not. Another was that an M-14 is a very impressive and intimidating piece of hardware. The days I have to worry about going home from the "job" are done and so is, prretty much, the M-14 as an MBR. The AR-15/M-16 is a fact of life today and for the next several years.
In those years of working with DOD and civilian LEO, I have found a great lack of knowledge among the less than gung-ho LEOs about firearms. Those of us that grew up around them have learned that there is always something new to be learned. I am new the the AR-15 world, but I can get rounds downrange where I want them with an assortment of weapons.
Your first responsibiltiy as a LEO is public safety and an AK is contrary to that. In match after match, the worst AR-15/M-16 will outshoot the best AK when it comes to accuracy. If you, as a LEO, pull the trigger, that round better hit where you were aiming, not close, not almost, not "made him duck" or "crapped his pants".
I suspect your "veteran officer" has limited experience with ARs and probably considers his pump shotgun worthy of the term "sniper rifle". The big question is "what semi/full auto long gun" does your SWAT/HRT/TAC unit and any other similar unit in the entire state use? I'll bet they sure as hell don't use any AK based item.
When we on this forum offer an opinion, we will state it as such and you can take it as it is offered. But, the information meticulously gathered by the authors of Ammo Oracle
www.ammo-oracle.com/ and other tables showing ballistics and performance is not "opinion". End of
!
We welcome you to this forum and will do what we can to help all gain knowledge and skill.
ETA: You should also check out the 10-8 forum
www.10-eight.com/ and
www.10-8forums.com/ubbthreads/postlist.php?Cat=0&Board=general.
Good read and info for "job" related issues.