**These mag extensions aren’t for sale to California residents. Due to the potential of bringing your magazine over the legal 10 round limit. An E-mail will be issued to the customer, notifying them of a full refund.**
**This will only fit the S&W M&P 9 17Round Mag**
+5 Mag Base Pad for the M&P 9
We are proud to introduce the newest member of the Hyve Technologies Mag Extension family. The +5 for the S&W M&P 9. Like a couple of our other extensions, this +5 features our new snap in design, followed up with a set screw to add extra insurance that your mag will not to slide off the back off the extension. While giving you extra rounds! This extension comes with a +spring.