So I was at the range yesterday with my AR and tried chambering a round by pulling back on the charging handle and letting it snap forward after taking my gun out of the bag and putting a fresh magazine in, but when I pulled the trigger, I just heard a click. The safety wasn't on, the magazine was 100% in the rifle (I did the push-pull thing like you're supposed to) and am not 100% sure how I fixed the issue (I might have just hit the bolt release), but every time after that, all I had to do was insert a new magazine, hit the bolt release, and I was in business. I didn't have to use the charging handle after that. Do I have to pull back the charging handle AND slap the bolt release when I am shooting the gun for the first time, or what? I thought I should be able to just pull back the charging handle and be all set.