Gas rings are produced via stamp cutting. This means that the top side edges will be round, while the bottom side edges are sharp instead.
When the gas rings are mounted to the bolt channel via your finger nail, you have to make sure that the stack of rings are all installed with the bottom sharp edges towards the tail of the bolt. This puts smooth edge against sharp edge, with the sharp edge facing the tail of the bolt to give a better seal from the gas being driven against them at unlock.
Note, depending on how sharp/bur'd the rings are brand new, it may not be a bad idea to take a light stone to the burs so they they will not catch on something.
Some times assemblers will get in a rush, and install sharp edge toward sharp edge, and this will cause the rings to bind up against each other to cause the damage you see.
As for gas rings, they are cheap enough, so pick up a few sets to cover you down the road as well.
As for if it was not the rings installed wrongly, some times the step channel in the carrier is cut too deep, and when the bolt is moving at lock and unlock, the rings will get caught at the reduced step. This is easy to check and as you are installing the bolt into the carrier, you can look at the cam channel on the bolt/ end of slot channel on the carrier, and make sure that all the rings have moved past this step reduced before the cam can be inserted into the bolt. Also, look inside the carrier and make sure that there is not a bur at the gas port that may have snagged the rings. The key passage port should be behind the ring, but some times there is enough of a bur that will snap off to snag a ring instead.