I bought a new G30 last Friday and took it out today to put the first 100 rounds through it. I cleaned the pistol prior to going the range last night and didn't notice anything out the ordinary until I got to the range today. The G30 came with 2 10 rounders. When I was loading 1 of the mags, I saw the metal liner of the the magazine had separated from the plastic exterior near the feed lips. The plastic had also bulged out slightly. I loaded the magazine and it looked like the rounds sat in the magazine in their normal position. I went ahead a loaded both magazines up and shot them. I ended up with 3 FTRB's out the 100 rounds I shot. It was no suprise to me that the 3 FTRB's were with the odd looking magazine. The other magazine fed and shot fine. I ended up picking up 100 more rounds to test my theory that the malfunctions were magazine related. I shot the next 100 rounds with the other magazine and a G21 magazine I had. All 100 rounds fed and shot as they should. I am working on the theory the malfunctions were magazine related. I called Glock and filled them in on what happened. They said to send in the faulty magazine and they will send me a new one. The 1st 100 rounds were Federal Champion 230 grn FMJ. The 2nd 100 rounds were Remington UMC 230 grn FMJ. I shot the Federal Champion as it was all I could get my hands on at the time. It sucks and is the only cheap ammo I normally avoid. The good part of the day was the pistol was great. It was very accurate and the recoil was soft for me. My questions for my fellow GT'ers are: 1. Has anyone ever seen a NIB G30 magazine with the metal liner seperated from the factory and if they have, did they have associated malfunctions? 2. Does it make sense to other shooters here that the magazine is the source of my problems? Thanks in advance for the answers.