Product Summary
The FAB Defense MPS-12 is a polymer magazine extension designed specifically for the Smith & Wesson M&P 9 Shield. This extension adds 4 additional rounds to your magazine capacity while maintaining a low profile suitable for concealed carry. It features fiberglass reinforced polymer construction and an innovative spring plate that allows you to keep using the original magazine spring. The ergonomic design includes contoured finger indents to ensure a firm grip and secure manipulation during reloads.










