Zastava NPAP M70 Gen 2 (AKM)
2014 Manufacture
Less than 2000 rounds through it
.
Should this deformation on the back of the bolt carrier be something I should be very concerned about? Is there something I can do to prevent the deformation? Is it normal wear and tear? I inspect my firearms when cleaning and found what I call 'peening' here. Please see photo. Thanks for your help folks.

-DNC89