I have both a RRA entry tactical and a stag 2L ar15s. I've read a little on it , my question is how can you tell if the gas key is staked properly and what issues could arise? Do I need to have this done? I have attached a link on the subject. what do you guys think?
http://m4carbine.net/showthread.php?t=6993
http://m4carbine.net/showthread.php?t=6993