Magazine Extensions For Grand Power P40 and EAA Witness in 10mm Auto

A set of 2 magazine extensions for the Grand Power P40, and I assume by extension, the EAA Witness in 10mm. These extensions allow you to increase your magazine capacity by +2 and +3 rounds.

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Recommended Print Material: Nylon 6 or other low friction filament of equal or greater strength

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Installation Instructions:

Installation is fairly straightforward, simply remove your original baseplate, hold your floorplate in place to slide the extension into place. Slide the extension over the rails of the magazine, and either using a tool or a firm whack, knock the retaining nub of the floorplate into the hole of the extension on the bottom.

Next, just push your magazine firmly to fit snugly in place, and then insert the 1mm retaining shim in the rear of the magazine until it either snaps through at the bottom of the extension.