PROMAG S&W M&P-40 MAGAZINE - 40 S&W - 10 ROUND CAPACITY - 15 ROUND BODY - STEEL - BLACK
ProMag Industries
$31.69
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ProMag Industries
PROMAG S&W M&P-40 MAGAZINE - 40 S&W - 10 ROUND CAPACITY - 15 ROUND BODY - STEEL - BLACK
The ProMag S&W M&P-40 Magazine delivers reliable, American-made performance for Smith & Wesson M&P .40 S&W pistols, featuring a California-compliant 10-round capacity housed in a full-size 15-round steel body.
- California-compliant 10-round capacity in a standard 15-round steel body
- Precision-wound spring uses heat-treated chrome silicon wire for consistent feed
- Rugged steel construction resists wear, corrosion, and impact damage
- Designed specifically for Smith & Wesson M&P pistols chambered in .40 S&W
- Easy-loading follower design reduces thumb fatigue during range sessions
- Manufactured and assembled in the USA with a lifetime guarantee against defects
Who This Is For
This magazine is ideal for California-based M&P .40 S&W owners who need a dependable, law-compliant spare magazine for home defense, range practice, or everyday carry backup. It's also a smart choice for competitive shooters and gun owners who want a high-quality domestic alternative to OEM magazines without sacrificing reliability or fit.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | .40 S&W |
| Capacity | 10 Rounds (CA Compliant) |
| Body Capacity | 15-Round Body |
| Material | Steel |
| Finish | Matte Black |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Compatible Firearm | Smith & Wesson M&P .40 |
| Country of Origin | USA |
| Warranty | Lifetime Manufacturer Guarantee |
Frequently Asked Questions
Will this magazine fit all Smith & Wesson M&P .40 S&W models?
This ProMag magazine is designed to fit standard Smith & Wesson M&P pistols chambered in .40 S&W. It is compatible with full-size M&P .40 variants. If you own an M&P Compact or M&P 2.0, we recommend verifying fitment before purchase, as grip frame dimensions may vary slightly between generations and configurations.
Why does a 15-round body only hold 10 rounds?
California law restricts detachable firearm magazines to a maximum capacity of 10 rounds. This magazine uses a standard 15-round steel body that has been blocked and pinned at the factory to hold no more than 10 rounds, ensuring full compliance with California's magazine capacity laws while maintaining the original ergonomics and form factor of the magazine.
How does the ProMag spring compare to factory OEM springs in terms of reliability?
ProMag uses precision-wound, heat-treated chrome silicon wire springs that are engineered to maintain consistent tension over thousands of loading cycles. While OEM springs are also reliable, ProMag's manufacturing process includes multiple quality-control checks at every stage of assembly. Many shooters use ProMag magazines as dependable range and backup magazines alongside their factory-issued options.
- Caliber:
- 40 S&W
- Capacity:
- 10/15 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Platform:
- M&P 40
- Material:
- Steel
