To the OP .. not trying to be rude at all, but you have a NRA and a NAVY banner next to your user name, and you dont know how an AR-15 works? Something doesnt jive there to me. Like I said not trying to be rude, just a bit confused. So many people are buying these weapons, and no idea what they have. It is actually a little scary. Is this your 1st personal weapon? None the less, welcome to the forum.
I have alot of pistols and rifles and shot guns and i hunt alot. Now i have a 15T. first AR. And I just bought it because OBAMA dont want to have one. Now that I have it and have shot about 75 rounds I'm glad I have it and want to learn more about it. Thats why I'm here.