Originally Posted by 97cobra
I've always heard AR used to describe assault rifle.
There is both. Originally AR was for the first manufacturer, who was Armalite. Later on when the patent expired or patents were bought/traded/sold (to Colt around 1960 or so) there was a progression away from that monicker. Then when everyone started producing knock offs, it became synonymous to just say 'AR' when talking about the civilian version of the M series (16, 16-A2, 4, 4gery, etc).
If you want to get all internet testy about it, then yes the 'AR' is correctly used for an Armalite branded product.
Most of the folks here on FTF pretty much let that sly and it comes up less frequently than the famous 'clips/mags' argument.
For the most part gun folks will assume if you say you were shooting your AR that you were shooting an AR-15 or AR-10 stylized weapon.
Gun folks routinely shiver at the sound of "Assault' rifle as assault is an action and a rifle is a thing/noun which can not create action on it's own. Thus a person could only be commiting 'assault' by use of something, not necessarily a rifle. Is there an assault rock? An assault fist or foot? Do police use an assault baton or assault mace?
The media is too stupid, or too ignorant, to make that leap of intelligent thought.