Hey All!
New to the forum but not the AR. Got a wierd one. Had a fully functioning A2 - outstanding shooter. My standard issue eyeballs no longer function with a rear peep so I swapped from a MilSpec A2 reciever to a Wilson Combat MilSpec flat top so I could mount some optics. Everything else stayed the same including the standard pinned-in-place A2 gas block/front site. I ended up taking some weight out of the buffer which I thought solved the problem - until it got hot. Now it is failing to pick up and feed as if it is short stroking although the ejection is fine. I did not expect this when swapping the reciever. Any ideas?