Anyone want to help/sell me a new sight system. The white ghost ring is too hard to see. To add insult to injury it is shooting about 10 inches too low at 25yards. To add to that I cannot get the rear attachment sight adjustment to move using and allen wrench and do not have the sight tool. To add to that I have about stripped out the allen wrench hole. I want to put an optical rail and red dot sight on to solve the problem. What do i do to get the existing one off? I will probably buy the rail system from the person who helps me with this little new owners mess.