PROMAG SIG P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 50 ROUND BODY - POLYMER - BLACK
ProMag Industries
$100.69
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ProMag Industries
PROMAG SIG P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 50 ROUND BODY - POLYMER - BLACK
The ProMag Sig Sauer P320 9mm Drum Magazine delivers high-capacity performance in a California-compliant 10-round blocked configuration, combining rugged polymer construction with precision steel components for reliable feeding shot after shot.
- California-compliant 10-round blocked capacity in a 50-round drum body
- Drum housing built from proprietary DuPont Zytel-based polymer for durability
- Full-length steel internal insert stamped and welded like the factory magazine
- Heat-treated stainless steel spring ensures consistent, reliable feeding
- Precision injection-molded follower for smooth, jam-resistant ammunition cycling
- Backed by ProMag's lifetime manufacturer defect guarantee — Made in USA
Who This Is For
This magazine is ideal for Sig Sauer P320 owners in California who want the bold look and feel of a drum magazine while staying within state-mandated capacity limits. It suits range shooters, competitive shooters, and P320 enthusiasts who refuse to sacrifice style or reliability when complying with local regulations.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | 9mm Luger |
| Capacity | 10 Rounds (CA Blocked) |
| Drum Body Capacity | 50 Rounds |
| Compatible Firearm | Sig Sauer P320 |
| Body Material | DuPont Zytel Polymer |
| Internal Insert | Heat-Treated High Carbon Steel |
| Spring Material | Heat-Treated Stainless Steel |
| Color | Black |
| Country of Origin | USA |
| Warranty | Lifetime Manufacturer Guarantee |
Frequently Asked Questions
Will this magazine fit all Sig Sauer P320 variants?
This ProMag drum magazine is designed specifically for the Sig Sauer P320 in 9mm. It is compatible with most standard P320 frames; however, fit can vary with aftermarket or heavily customized frames. We recommend verifying compatibility with your specific P320 variant before purchasing.
Is this magazine permanently blocked to 10 rounds for California compliance?
Yes. This magazine is sold as a California-compliant, blocked 10-round magazine. The drum body is based on a 50-round design but has been permanently restricted to a 10-round capacity to comply with California state law. It is intended for sale and use in states with a 10-round magazine capacity limit.
How reliable is the ProMag drum magazine compared to factory Sig magazines?
ProMag engineers their magazines to match factory feeding reliability by incorporating a full-length stamped and welded steel internal tower insert — the same construction method used in OEM magazines. The heat-treated stainless steel spring and precision-molded follower are designed to minimize misfeeds and ensure consistent cycling through all 10 rounds.
- Caliber:
- 9mm
- Capacity:
- 10/50 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Platform:
- P320
- Material:
- Polymer
