So today was range day w/ my SPR clone (Iron Sight's only) and noticed a couple things. First it appears my gas block is leaking at the top-front, notice in picture. The gas block I have is a YHM .750 2 set-screw block.
Is there anything that can be done besides buying a new block? Lastly the fixed stock assembly is a used unit I got for FREE from my friend. This is the first Rifle length rifle AR-15 I have shot. After each shot I can feel/hear a spring vibration in the stock. Is that any chance sign's of a worn out buffer spring?
Overall i'am very impressed w/ the accuracy of the Rainier Arms Match barrel and quality of everything else.
Dan

Is there anything that can be done besides buying a new block? Lastly the fixed stock assembly is a used unit I got for FREE from my friend. This is the first Rifle length rifle AR-15 I have shot. After each shot I can feel/hear a spring vibration in the stock. Is that any chance sign's of a worn out buffer spring?
Overall i'am very impressed w/ the accuracy of the Rainier Arms Match barrel and quality of everything else.
Dan