PROMAG SIG SAUER P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 21 ROUND BODY - STEEL - BLUED/FDE
ProMag Industries
$35.69 - $39.69
(No reviews yet)
Write a Review
ProMag Industries
PROMAG SIG SAUER P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 21 ROUND BODY - STEEL - BLUED/FDE
The ProMag Sig Sauer P320 Magazine delivers reliable 9mm feeding in a California-compliant 10-round capacity, housed in a full-size 21-round steel body — giving P320 owners the ergonomics and grip of a standard magazine while staying within legal limits.
- California-compliant 10-round capacity in a full-length 21-round magazine body
- Heat-treated steel construction with a durable black oxide (blued) finish
- Flat Dark Earth (FDE) endplate adds a two-tone tactical aesthetic
- Precision-wound chrome silicon wire spring ensures consistent, reliable feeding
- Injection-molded polymer follower reduces friction and improves round presentation
- Made in the USA and backed by a ProMag lifetime manufacturer's defect guarantee
Who This Is For
This magazine is ideal for Sig Sauer P320 owners in California and other capacity-restricted states who want the natural grip length and feel of a full-size magazine without exceeding the 10-round legal limit. It's also a smart choice for competitive shooters, range enthusiasts, and everyday carriers who prioritize reliability, American craftsmanship, and a rugged steel body that holds up to heavy use.
Specifications
| Brand | ProMag Industries |
|---|---|
| Compatible Firearm | Sig Sauer P320 (9mm) |
| Caliber | 9mm Luger |
| Capacity (Legal) | 10 Rounds |
| Magazine Body Length | 21-Round Body |
| Body Material | Heat-Treated Steel |
| Body Finish | Black Oxide (Blued) |
| Endplate Color | Flat Dark Earth (FDE) |
| Follower | Injection-Molded Polymer |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Country of Origin | USA |
| Warranty | Lifetime (Manufacturer Defects) |
Frequently Asked Questions
Will this magazine fit all P320 variants, including the Compact and Full-Size models?
This ProMag magazine is designed for the Sig Sauer P320 chambered in 9mm. The full-length 21-round body is sized to fit the P320 Full-Size frame and will also insert into Compact and Carry models, though it will extend below the grip. Always verify fit with your specific P320 variant before use.
Is this magazine legal to purchase in California?
Yes. This magazine is specifically blocked to a 10-round capacity, making it compliant with California's magazine capacity restriction law. The 21-round body provides a comfortable, full-size grip surface while the internal block limits feeding to 10 rounds. It is sold as a California-compliant magazine at Goodland Guns.
How does ProMag's spring quality compare to OEM Sig Sauer magazines?
ProMag uses precision-wound, heat-treated chrome silicon wire springs — the same material standard used in many premium magazine manufacturers. While Sig Sauer OEM magazines are always a benchmark option, ProMag's USA-made construction and lifetime guarantee make them a dependable and cost-effective alternative for training, range use, and backup carry magazines.
- Caliber:
- 9mm
- Capacity:
- 10/21 Round
- Color:
- FDE
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Platform:
- P320
- Material:
- Steel
