The MK IV 22/45 Magazine Release protrudes further from the frame than the original. This allows for faster and more comfortable magazine ejection.
The release works with the factory magazines. However, since the magazine sits higher, it is highly recommended to use the magazine release in conjunction with our Magazine Base Pads.
Please note: when using our release with factory magazines and base pads, that the magazine will sit just above flush on the bottom of the frame.