I have never owned, been issued or otherwise used in any form or fashion an "assault" rifle. I have over the years owned and used a wide variety of rifles, shotguns, pistols aka side-arms, weapons, M16s, M4s, M203s, bullet launchers, lead slingers, commie elimination devices, etc...but never, ever, once did I or anyone in any organization I served with ever refer to any rifle or other bullet launching device as an "assault" rifle. Just sayin.
35+ years of getting paid by the Defense Finance & Accounting Service and I have never, ever heard the term "assault rifle" applied to the rifles/weapons in an Army arms room.