The newly patented XGRIP XGGL29-30 adapts the G20, or G21 full size magazine for use in the G29, or G30 pistols, incorporating the larger magazine into the grip, and increasing the gun s capacity. Law enforcement and military personnel can carry the G29 or G30 with a standard magazine when concealment is important, then insert the full size high capacity magazine with the XGRIP XGGL29-30 when maximum firepower and capacity become critical.