Maybe they don't check the electric gun forum so i'll try my luck here...
https://barraairguns.com/community/forum/topic/175771/trying-to-register-my-400e-but-can-t-find-the-serial-number
Basically I'm trying to register my Barra 400e Polymer but can't find the serial number. I have photos in the other thread. My only clue is that maybe only the metal ones have serial numbers since I see it on one of their YouTube videos.
I'd appreciate any help. Thanks.
@PewPewPop
You have to look very carefully under the white text
And let me know if you found it

@Frank , Thank you. I think i see it but it's faint...

@Ifield I super appreciate your help. i applied some light oil to aid with contrast and then shined a light at different angles to tease out the serial number. Still can't fully read the SKU to the left but I think it's good enough to submit for warranty. I hope i read it right!
@PewPewPop
Glad I could help, I'm a noob at these things and usually they help me out 😁