Align Tactical's OFFSET Extended Magazine Release is compatible with Sig SauerA(R) P320/P250A(R) standard and X-SeriesA(R) grip frames. Asymmetric (specific to either right or left-handed use). The right-hand version is available and Align Tactical is working to launch the left-hand version. Hardened steel part finished in Black Oxide. Made in USA with lifetime warranty. *Holsters that cover the magazine release may require minor relief for use