ProMag Beretta M96 40 Smith & Wesson 20rd Magazine Black Oxide

The ProMag Beretta M96 .40 S&W 20-round magazine gives you extended capacity for your M96 pistol without sacrificing reliability. Built in the USA with heat-treated blued steel and a proprietary polymer base, this magazine combines proven durability with the extra rounds you want on the range or in the field. At 8.125 inches overall length, it delivers meaningful magazine real estate while maintaining a profile that works with standard holsters and carry setups.

ProMag engineered this 20-rounder with materials built to last: the steel body is heat-treated for strength, the follower and base plate are molded from a durable DuPont Zytel-based polymer, and the spring is wound from chrome-silicon wire and heat-treated to keep feeding rounds reliably through thousands of cycles. The black oxide finish resists corrosion and pairs cleanly with your M96's profile.

If you run a Beretta CX4 Storm carbine, note that magazine compatibility can vary by production year—Beretta recommends confirming which magazine generation your specific carbine accepts before ordering, as this mag may or may not fit some CX4 variants.

Key Features

• Extended 20-round capacity for .40 S&W M96 pistols
• Heat-treated blued-steel construction for durability and corrosion resistance
• Chrome-silicon wire spring, heat-treated for reliable feeding
• Proprietary DuPont Zytel polymer follower and base plate
• 8.125-inch overall length
• Made in the USA

Specifications

Frequently Asked Questions

Will this magazine work in my Beretta CX4 Storm carbine?

Compatibility between this magazine and the CX4 Storm varies depending on the carbine's manufacturing year and series. Beretta recommends contacting them directly to confirm which magazine generation your specific CX4 was built to accept before ordering.

What caliber is this magazine for?

This is a .40 S&W magazine designed for the Beretta M96 pistol.

How many rounds does it hold?

The magazine holds 20 rounds, giving you extended capacity over the M96's standard offering.

Where is this magazine made?

The ProMag Beretta M96 magazine is manufactured in the USA.