In the planning stage to build a 9mm AR SBR. I happen to have a Bushmaster AR-15 lower with the caliber 5.56 or .223 already manufacturer engraved.
Well I need to remove the 5.56 or .223 and engrave 9mm along with my name and city, state ?
Can I just purchase a receiver that has multi caliber already engraved on it, and then engrave the 9mm, name, city state ?
I know I can buy a dedicated 9mm lower, but there out of my price range.
Thanks for the help