Shop › MAG ACT-MAG 1911 A2 40SW/10MM 16RD MAG ACT-MAG 1911 A2 40SW/10MM 16RD $44.99 Armscor Pistol Magazine, 40S&W/10MM, 16 Rounds, Fits Rock Island Ultra Full Size High Capacity Pistols, Steel, Blued Finish OEMP164015B Quantity: Add To Cart Added! Armscor Pistol Magazine, 40S&W/10MM, 16 Rounds, Fits Rock Island Ultra Full Size High Capacity Pistols, Steel, Blued Finish OEMP164015B