I have an lcs sk19 in .25. It’s been a great gun but it currently has a leak I cannot find it’s hissing like crazy I changed out all the o rings but I’m worried about digging deeper into the gun and breaking or loosing a spring across the room. The leak is coming from under the rear safety. I can’t find any diagrams or info other than the videos posted on aoa about o rings. Any help would be very much appreciated.