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

thingiverse

A Pair of Magazine Extensions for the Grand Power P40, as well as presumably the EAA Witness in 10mm. These extensions allow users to boost their magazine capacity by an additional +2 and +3 rounds. Recommended Printing Material: Nylon 6 or other low-friction filaments with equal or greater strength. Installation Instructions: Installation is relatively simple. First, remove your original baseplate. Then, hold your floorplate in place while sliding the extension into position. Next, slide the extension over the magazine rails and either use a tool or give it a firm whack to knock the retaining nub of the floorplate into the hole at the bottom of the extension. Finally, push your magazine firmly into place until it fits snugly, then insert the 1mm retaining shim in the rear of the magazine. Continue pushing forward until the shim either snaps through or reaches the bottom of the extension.