I have a S&W factory barrel for the full size M&P and two ProMag 17 rd. mags for sale. I bought them to convert my .40 S&W, installed the barrel and ran a half dozen rounds or so through both mags to check for function. I wound up buying an M&P 9 so I never used these beyond function check. $150 shipped. I am new here so I don't know if this post will stay up but I have been on THF and 68Forums for a long time as bar-d. If you have trades, I would listen to all offers. Thanks.
Final price drop. $125.00 shipped is less than I have in it. Just don't need it but this is as low as I can go on the price.