Thanks everyone and TG. Yeah, we had much more malfuctions out of our M4's that day because of crappy reloaded ammo, that we know tends to have problems out of our M4 style rifles. I used factory ammo, and PMAGS and of course mine were flawless.
Also, Gap abuses the hell out of the rifle. He hardly ever cleans it and it just sits there for a long time as well. That thing will rust shut probably from GA humidity, then he'll bang on the bolt with a hammer, set it free, and then maybe add some oil or something, and then it will shoot just fine.
You couldn't do that with my AR and expect it to function like that.