Rescently aquired a used G30 and it came with a G21 aditional magazine. After I came home, noticed that after loading the 10th round, it makes a rattling noise. In the range i did not heard it beacause of the ear plugs and shoot it with that magazine fully loaded twice (26 rounds) without any problem. My question is,could that represent a reliability issue? Today I carried it for the first time but leaved that magazine at home because i don't know if it culd fail when needed (I mean the magazine!) Any insight would be greatly appreciated. Thanks in advance! BTW I love the gun and from know on, I think it will replace my G23 as my main carry piece!