Smith and Wesson Shield Magazine extension

thingiverse

This is a Smith and Wesson Shield magazine extension I designed specifically for my 9mm Shield, which I'm still refining over the next couple of days with some minor adjustments. The extension boosts the factory 7-round 9mm magazine capacity to 9 rounds or converts the factory 6-round .40 S&W magazine to 7 rounds, potentially accommodating an additional round in a .40 calibred Shield but I lack that specific gun for testing. A plug is integrated to secure the baseplate from detaching when inserted into the firearm, although some minor fitting might be required once printing is complete. The backside walls of the baseplate are slightly thin and will be thickened to minimize breakage during support removal. Printing it flat would also eliminate support issues but introduce difficulty in clearing out supports within the rails, which still functions smoothly and uses less plastic.