The Mag Charger universal pistol loader works with both single-stack and double-stack magazines and works with most magazines. Features adjustable side shims to fit a magazine inside. It is compatible with 9mm, 357 Sig, 40 S&W, & 45 Cal ammo. *This product does not work with the Bersa Thunder .380 and the CZ Scorpion EVO3 S1 9mm.