Mec-Gar Plus-4 Adapter Set for Beretta 92 / Taurus 92 / Sig P226

The Mec-Gar Plus-4 Adapter Set is a drop-in magazine floorplate kit that converts a flush-fit Mec-Gar Beretta 92, Taurus 92, or Sig P226 aftermarket magazine into an extended unit by adding 4 rounds of capacity. It is designed exclusively for use with Mec-Gar aftermarket magazines built on the listed pistol footprints and is not a universal-fit part.

The kit includes a polymer Plus-4 magazine extender that replaces the factory floorplate and a phosphate-coated steel locking plate that secures the assembly to the magazine body. The locking plate is heat-treated for a tight, repeatable fit. Installation is straightforward - remove the existing floorplate, slide on the Plus-4 extender, and secure it with the included steel locking plate. No spring or follower modifications are required, and the adapter installs without permanently altering the magazine.

This adapter is intended for Mec-Gar 9mm Luger Beretta 92, Taurus 92, and Sig P226 aftermarket magazines and delivers the full +4 capacity increase on those magazines. Magazine is not included.