Brownells went straight to the source for quality pistol magazines, Meccanica del Sarca of Italy.  Meccanica del Sarca has been producing OEM magazines for major firearms manufacturers since the late 1980s.  Now, these quality magazines are available direct to you.  Meccanica del Sarca stamps, welds and finishes the magazines in-house, and has strict quality controls for its heat treatment and surface finishing suppliers.  These magazines feature a dark blued finish, that makes magazines changes smooth and fast.  Polymer follower smoothly operates within the blued magazine body.  Witness holes a the rear provide a quick assessment of remaining cartridges.