Light Surface Mark AR Laser Engraving

This is an example of either a light surface mark Laser Engraved AR15 lower and the one on top is a slightly deeper cut Laser engraved AR 15 lower. Both of these types of Laser engraved marks are permanent and can be applied over any surface on the firearm. 

Here is a quick video of one of the AR lowers being Laser engraved over a distressed Cerakote Coating.