Mine's been flawless for 2 years and about 2K rounds. Take care of it and it will take care of you. I believe the above is correct about a one year warranty.
Hello,
I actually just purchased an m&P the other day but before I did I called Smith and Wesson to check on the warrenty and the representative told me that it was a lifetime warranty. However, I purchased the firearm new so I am unsure of what the rules are for older m&p's. Also if you would like to call Smith just to varify with another representative the number is 1-800-331-0852 (USA)Mon-Fri 8:00AM-8:00PM Eastern Time. I hope this helps. Also which M&P AR 15 are you looking to purchase?
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