Who are you guys talking to that you use terms like this?

An AR is an "AR" or a "carbine". (FYI- the term battle rifle usually refers to a non-sniper platform .308. I.e. an FAL or a SR-25 EMC)

A magazine is a magazine. I can't think of a reason I would use the term "high capacity magazine" unless I was mocking someone. For an AR, a 30rd magazine is standard capacity. For a G19, a 15rd magazine is standard capacity.

Stop hanging out with hippies and you won't have these problems.....