I am brand new to airsoft, this is my first gun, and it is not firing. I have an ICS G33 AEG with a T-Plug, an Enrichpower Ni-MH 8.4 volt 1600 mAh nunchuck battery with a Mini-Tamiya, an adapter with a female T-Plug to male Mini-Tamiya, and a Tenergy smart AC charger for 8.4-9.6 volt NiMH batteries with a Mini-Tamiya. I got the gun secondhand at a garage sale (the guy I got it from said he only fired it once or twice) and everything else is brand new. So, I fully charged the battery, plugged it into the gun, turned the safety off, pulled the trigger, and nothing happened. I checked the fuse and it was fine, plugged the battery back in and made sure the it was correctly connected, and tried again. Still nothing. Can anyone help me with troubleshooting tips? Thank you for your time.