Replace the existing magazine on your Para USA P16 pistol with the MEC-GAR Para USA P16 .40 S&W 15-Round Replacement Magazine. This detachable magazine holds 15 rounds of .40 S&W ammunition and features steel construction with a blued finish for durability. Mecgar MEC-GAR Para USA P16 .40 S&W 15-Round Replacement Magazine - Shooting Supplies And Accessories at Academy Sports