XGSWMP.

The XGSWMP slides over a full-size M&P 1.0 magazine and seats it in the original M&P Compact. In 9mm that is 17 rounds in place of 12, five more rounds and a grip long enough for the whole hand.

The XGRIP closes the gap between the M&P frame and the longer magazine, drawn to the M&P's own grip lines so it looks like part of the pistol. Its shape is based on the anthropometrics of the hand and wrist, so the whole hand has a surface to hold and nothing is left hanging below the frame.

It is cut to seat the magazine at the right depth, and no deeper. Nothing on the pistol is drilled, cut or replaced. Not for M&P 2.0 pistols.