I have a Spikes Tactical dedicated .22 upper that I have had for about 4 years. I can't getting it to fire at all right now. I have taken it apart and cleaned everything, looked over it as best I can with out taking the bolt completely apart, and emailed Spikes all with no luck. I plan on calling them tomorrow but until then does anyone have any suggestions on what to look for. My initial thought is something in the bolt/firing mechanism is broken but I have no clue.