by SekiRyu » Thu Dec 29, 2011 7:55 pm
1. Does the hammer fall? If yes then something is wrong with the GBB system, or the slide isn't fully in battery (completely forward). If no then either the hammer spring is broken, or <refer to question 3>
2. Does the trigger reset after you pull it? If no then the trigger spring is broken (although that shouldn't effect firing).
3. Is the trigger actually being depressed, or does it not move when you try to pull it? If no then either you're not disengaging the grip safety (remember, 1911s have two safeties) or it's stuck somehow.