This is a factory extended 20-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 black 20-round magazines with extended polymer baseplates will help keep you in the fight longer, and they’re ideal for home defense use where you won’t always have an extra magazine handy. Remember that extended magazines are still susceptible to wear and tear, so be sure to rotate them regularly and keep a spare magazine handy.
Also compatible with Cx4 Storm carbine (with Px4 magazine well insert/release), Px4 compact & sub-compact (extends below base of grip).