Based on the research of Sir Charles Upton II, and what you mention here, I have determined that the problem is self induced, therefore I strongly reccomend taking better care of your AR, please understand that the internal hardware of the AR is made out of a low-grade poxy nuclorium, which is a low densed, alkaline metal that has a maximum impact capacity of 2 1/2 feet, respectivly. Your AR is worthless, i reccomend you contacted your local recycle group and have them pick it up, it usually takes around 10-12 weeks.