Bolt getting stuck on bolt catch
Ok,I have a an AR15 that i got about a month ago and im having issues with the bolt release. What happens is that after emptying a mag the bolt locks back like it should, I put in a new mag and hit the bolt release and about 99% of the time the bolt hangs up.Its not stuck all the way because I can smack the side of the rifle and it slams shut the rest of the way. It only does it after actually firing the gun to empty the mag. I cant replicate it by cycling the rifle by hand. While shooting,it fires flawlessly.I cant see any wear marks on the inside of the buffer tube so Im pretty sure its not hanging up in there. Another thing is that the bolt release is really hard to push when locked back from actually firing the gun. Any ideas?