Yeah i have the real deal P-mag 120rds for about 3 or 4 months and no issues yet. Great feeding and fit perfectly in my CA. I've even left it out in VERY dense fog all night and found it soaking wet in the dirt the next morning and still feed's PERFECTLY. I've taken it completly apart and it has a very good internal design also. Best midcap out there IMO if you're willing to sell your arm for them
. Also about the feed lip no problem yet and i have a tendency to slam my mags in. If anything the feed lip just minorly dents but absolutly no cracking.