Yes that is right! this base plate will replace the factory base plate on a factory 21-round SIG P320 magazine to allow it to fill the gab on a compact frame...go ahead try one out...then come back if you love it!
Please select this listing if your current magazine base plate has a square on the bottom instead of a circle, but for the circle verions go here:
Circle
Like all my designs I made this for myself and offer it to anyone else with simular wants, needs, desires to customize thier P320! Enjoy.
Customize input box (see right) : enter three characters or a compinatiosn of spaces and charcaters to center values.