I just got a PX9707L Monday and have three Para P14 mags I got from CDNN. They fit and feed just fine. CDNN is now listing Springfield factory hi cap mags for 39.99...the price on the Para mags is 59.99!? I ordered the nonILS mainspring housing from SA and 500 rounds of Federal Red box from Ammoman. Headed to the range Saturday. Can't wait.