Originally Posted by
lethal dose
just out of curiosity, i've been piecing my ar together and have fixed several key issues, but still have others that need addressed. my gun is older and shows signs of moderate wear but clean for the most part. i'm going to pawn the a-1 upper off and replace it with a flat top. the barrel is in surprisingly good condition, however, it's not marked and i have no idea what it is. my question is... should i replace the entire upper and barrel or just the upper and keep the barrel for now? it is an older ar with no feed ramps. i hear lots of mixed opinions. some say that this will never prove to be an issue, others swear i'll never be happy. as it stands, i replaced the bolt/carrier group with a bcm and the gun functions 100% 99% of the time... hahaha... on occasion, the 2nd to last round will stovepipe (proper rifle terminology?) upon extraction, and that's it. i have been told to get the new bolt/carrier group broken in and if it still does it, try another mag. suggestions? thanks!