I'm new to this forum and I'm hoping someone can help me with a problem I'm having with my Tommy gun. I am the original owner of this gun for several years but I never fired it till recently. After 7 rounds it does a three shot burst without holding the trigger. I'm reluctant to take the gun to the range because it sounds like a full auto. It does this consistently. I'm wondering if there are others that have experienced this problem and what they done to fix it. Thanks