Black Ops offers a full service Tech Shop that is open on weekends for quick repairs and troubleshooting as well as complete repairs and upgrades on airsoft rifles, pistols, snipers, etc.  We have a large selection of parts in stock so repairs and upgrades are relatively quick and if it is not in stock we will gladly order it for you.  Our technicians are trained for 3 months on our rentals before they are approved to work on customers guns to ensure they are experienced, effective and that the fix will be done the right way the first time.