Welcome and sorry your having this problem . Even tho you just got this from your buddy your best bet is to just go ahead and send it in to Taurus . That gun has a lifetime warranty reguardless who owns it and I would definitely want it working perfectly right as to take chances . Did this problem happen before you cleaned it . Did you take the cyclinder off for cleaning or just open it with cyclinder attached already ? Someone else here might be able to help you if a spring is the actual problem .