Guys, Phil from MPA here. On the feeding issues identified in this post, we have identified the culprit. Recently we decided to make a change in our mag supplier to MBX. This has corrected the feeding inconsistency. On the mag fit, the MBX mag body dimensions are larger than the ones from our previous supplier. Although we were using MBX mags to confirm fitment, the ones we had in house (before we made the change) would allow proper fitment into our grips. Once we received in a larger group of mags from MBX and measured the front to back dimensions, many were larger than the ones we had for original testing. All of this has been corrected. For any customer that had this issue, we are replacing both the magazines and the grips, at no charge to the customer and are also covering the overnight shipping expense. Moving forward, all grips are fully MBX compatible and all pistols are shipping with 2 MBX mags (126 & 140mm). If anyone needs any help with this, reach out to me directly. phil@masterpiecearms.com or message me through this forum.