I recently purchased a SAR-1 and I just got my steel Polish mags in from AIM.  I was testing the mags for fit and the second one I popped in got stuck.  I can't seem to get the little bastard out.  Anyone have any ideas?  I've always had to push forward on mags to get them to pop out but the lever won't budge with this one no matter what I do.  This sucks because I also got half a case of ammo from AIM and I wanna shoot my damn gun again!  Thanks guys, I appreciate any help.

Thanks, I finally managed to get it out.  I think it's more the mag itself considering the rest of them work fine.  I think i'll do some comparisons and hit it with the file.