A 20-round capacity, magazine supports longer shooting periods without frequent reloading
Suitable for the Sig Sauer P320 9mm pistol
Magazine body constructed of heat-treated steel with a black oxide finish
Injection molded magazine follower for smooth operation
Magazine spring formed from heat-treated chrome silicone wire for durability
Made in the USA for premium quality

Features

ProMag magazines embody a perfect blend of traditional craftsmanship and modern innovation. Crafted with precision, they feature heat-treated high carbon steel stamped and welded using traditional methods, combined with advanced Mil-Spec polymer compounds through modern injection molding techniques. Each ProMag magazine is backed by a lifetime guarantee against manufacturing defects, ensuring uncompromising quality and durability. The ProMag drum magazine exemplifies this commitment to excellence, constructed from DuPont Zytel-based polymer. Its upper tower includes a full-length steel internal insert, meticulously stamped and welded to mirror the reliability and robustness of factory magazines.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.