Being an AR noobtoob, I'm not sure if this is normal or what.
Optic was mounted on last notch and once removed, 2 burn marks were discovered on the bottom.
Is this typical or perhaps a gas issues?
http://i210.photobucket.com/albums/b...an3/002-36.jpg
http://i210.photobucket.com/albums/b...an3/005-16.jpg[/QUOTE]

