Kind of a newbie question here. On another forum, there was a discussion about recoil springs vs something or other, that went to hell in a basket. Guys arguing. The term “the gun is in battery” was used extensively. I asked what that term meant, as I’d never heard of it before. The thread went on with the same guys arguing for another page. I should have known better than to ask such a remedial question in the middle of an argument. So, I thought I might get an answer over here. What is meant when “the gun is in battery”. This was about a Glock, which will be my next hand gun.