Hey guys I've been seeing a lot of magazine sales going on, currently I have a mix of Pmags and steel magazines and they've been working great thus far. I saw an ad for a 40 round AR15 magazines, I wanna say it was from CProducts or one of the other manufacturers CProducts is where I get all of my steel magazines. I was just wondering if any of you have played around with the 40 round magazines at all? I know with some of the cheaper magazines the spring isn’t strong enough to push 40 rounds through it... So long story short I was just wondering if you guys have used them before and if you have how they worked for you? I thought it might be a bit fun to pick up a few of them