ok i have found the problem on the gun.. it was a wire that must have came in contact with another wire because there was a "burn" mark around the middle of the wire. so i "fixed" it for now ( dont know how long it will last) but the gun shoots fine and is still very accurate, not so sure about the FPS tho. the whole gun is "wobbling" and there are alot of small screws missing from the body.
there are a few parts missing that are probably going to be like $10-$20
there are 2 missing parts that i can see. the pin that holds the battery in and the left handed safety switch
small screws
i bought this gun from shorty USA a few years back for around 200 but i dont know how much id want to sell it for now. if you want to just toss up offers or trades go for it. im looking for a GBB and a M15A4
if you would like anymore info please contact me.. if you want a pic just text me and i can send you a pic message because the camera is broken
cell 480 773 9134