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Questions & Answers
Customer Reviews
Helpful Positive Review They’re pretty good by Bret, Verified Owner, January 6, 2025
Look and perform almost identical to SIG brand. My one negative is that are hard to load once you get to the 20-21st mag but I’m sure throughout time as the spring gets worked it’ll get better. Other than that the perform phenomenally and 100% better...
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1/1 found this helpful
Most Recent Reviews dry fire tested, no live yet by Tony, Verified Owner, July 11, 2025
Phenomenal so far just running through so mag swaps and fry fire runs. Light but heavy enough that I dont have to John Wick my Pew Pew to get it out. Gotta give it a 4 of 5 cause I haven’t taken them to the range yet.
Most Recent Reviews Sig P320 magazine by nick, Verified Owner, May 20, 2025
Awesome product. Looks cool and works well. Works well for practice or for self defense.
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Gun Model: SIG Sauer P320 Caliber: 9mm Luger Magazine Capacity: 21 Round

Code: KA0-PMG-PRMG0816-SIG-A20-FDE-21RD

MPN: SIG-A20-FDE

UPC: 708279016134

List: $34.99Save 12%
$30.77

Certain firearm magazines and extensions are subject to maximum capacity restrictions based on state and local laws. Currently, we are unable to sell these products to some locations. For a complete list of these restrictions, please visit our policy page.

By continuing with your purchase, you agree to adhere to all applicable laws and regulations.  

Product Info for ProMag Polymer Steel Sig Sauer P320 9mm 21-Round Pistol Magazine

The ProMag Magazine features a magazine body constructed from a proprietary DuPont Zytel based polymer. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire.image

Specifications for ProMag Polymer Steel Sig Sauer P320 9mm 21-Round Pistol Magazine:

Manufacturer: ProMag
Gun Model: SIG Sauer P320
Caliber: 9mm Luger
Magazine Capacity: 21 Round

Package Contents:

  • ProMag Polymer Steel Sig Sauer P320 9mm 21-Round Pistol Magazine

ProMag Polymer Steel Sig Sauer P320 9mm 21-Round Pistol Magazine Orderable Models

List of Orderable Models

ProMag Polymer/Steel Pistol Magazine, Sig Sauer P320, 9mm, 21-Round, Black, SIG-A20-FDE-21RD , MPN: SIG-A20-FDE , UPC: 708279016134 , Code: KA0-PMG-PRMG0816-SIG-A20-FDE-21RD
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