Pics of the Performance Center Model please.
Is it stamped in the metal or the polymer? Is it engraved, stamped, molded or melted in?
It sounds from JAV like it is on the outside of the magazine well, on the right hand side, below the M&P 15-22 markings.
Or is it under the chamber, on the breechblock where you have to remove the magazine or open the bolt to see it?