PROMAG SIG P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 21 ROUND BODY - STEEL - BLACK
ProMag Industries
$35.69
(No reviews yet)
Write a Review
ProMag Industries
PROMAG SIG P320 MAGAZINE - 9MM - 10 ROUND CAPACITY - 21 ROUND BODY - STEEL - BLACK
The ProMag SIG Sauer P320 Magazine delivers reliable, American-made performance in a California-compliant 10-round configuration — built with the same rugged steel construction and precision engineering trusted by shooters nationwide.
- California-compliant 10-round capacity in a full-size 21-round steel body
- Precision-wound spring using heat-treated chrome silicon wire for durability
- All-steel construction resists wear, corrosion, and feed failures
- Manufactured and assembled entirely in the USA with strict quality checks
- Designed for smooth, easy loading and consistent, reliable feeding
- Backed by ProMag's lifetime guarantee against manufacturer defects
Who This Is For
This magazine is ideal for California-based SIG Sauer P320 owners who demand a dependable, law-compliant feeding solution without sacrificing build quality. Whether you're a range shooter, competitive shooter, or everyday carry user, this ProMag offers peace of mind with rugged steel construction and a no-questions-asked lifetime warranty backing every round you feed through it.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | 9mm Luger |
| Compatible Firearm | SIG Sauer P320 |
| Capacity (Legal) | 10 Rounds |
| Body Size | 21-Round Body |
| Construction | Steel |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Finish | Black |
| Country of Origin | Made in the USA |
| Warranty | Lifetime Manufacturer Guarantee |
Frequently Asked Questions
Will this magazine work with all SIG Sauer P320 variants?
This ProMag magazine is designed specifically for the SIG Sauer P320 chambered in 9mm. It is compatible with standard full-size and carry-frame P320 models. If you own a compact or subcompact variant, verify frame compatibility before purchasing, as grip module size can affect magazine fitment and flush seating.
Why does this magazine have a 21-round body but only hold 10 rounds?
This magazine uses a full-size 21-round body but is blocked and pinned at the factory to a legal 10-round capacity, making it fully compliant with California's magazine capacity restrictions. The larger body provides a comfortable, ergonomic grip and a familiar feel for shooters used to standard-capacity magazines, while remaining street-legal in restricted states.
Is this magazine legal to purchase and use in California?
Yes. This magazine is blocked to 10 rounds at the factory and is sold as a California-compliant magazine, meeting the state's restrictions on magazine capacity. It is listed under our CA Blocked Pistol Mags category specifically for customers in California and other states with similar capacity limits. Always verify your local and state regulations to ensure compliance before purchasing any firearm accessory.
- Caliber:
- 9mm
- Capacity:
- 10/21 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Platform:
- P320
- Material:
- Steel
