Rifle Scopes EO-tech serial number

[Alcatraz]

Hey there guys I have to ship my eotech back to get it fixed (won't turn on [took battery out let it sit for days] still doesn't work) so I figure ship it back and get it fixed but I can't find the serial number. I would really appreciate it if someone could tell me where it is located.

 

[Redmanss]

Should be on the rail surface via sticker.