Problem is such; after cycling a round, the next round to be cycled in the mag is getting scraped. A full length scratch. I assume the bolt or carrier is the culprit, but I don't see the remedy. I have 2 PMags and a mil spec mag, happens with all three.
Doublestar upper w/appx 500 rds
CMMG lower
Here is a picture of what they look like.
Doublestar upper w/appx 500 rds
CMMG lower
Here is a picture of what they look like.
Attachments
Last edited: