IMPORTANT! M&P15-22 CONSUMER SAFETY ALERT AND INSPECTION PROCEDUREDESCRIPTION - Please Read This If You Have A M&P15-22 Rimfire Firearm.PRODUCT AFFECTED:ALL models of M&P15-22 rifles and pistols manufactured before February 1, 2019.STOP USING YOUR M&P15-22 UNTIL IT HAS BEEN INSPECTED AND YOUR...
They tell you what to do at the bottom of their alert. It is, of course, to contact them directly.
OLD NEWS.........S&W send that out a couple of years ago. Then when you contacted them they sent you a little feeler guage device to check your bolt. I got it. Checked mine. All OK. Still have it around here somewhere.