This is a factory extended 17-round magazine for Beretta Px4 Storm pistols and Beretta Cx4 carbine (with Px4 Magazine well insert/release).
Beretta’s NATO-approved Px4 Storm is a masterpiece of durability and reliability—trusted not only by military and police forces from around the world, but also by private American citizens who rely on the pistol for their own personal defense. These 9mm factory magazines feature a blued finish with steel construction and 17-round capacity—helping you rotate magazine and keep extra rounds at the ready.
These upgraded factory magazines feature a slightly enhanced capacity over factory standard, with the same fit and feel. With a high-polished blued steel finish and a thick polymer base plate, these magazines fit and feel the same—but pack a bit of extra firepower.