PROMAG S&W M&P-40 MAGAZINE - 40 S&W - 10 ROUND CAPACITY - 25 ROUND BODY - STEEL - BLACK
ProMag Industries
$47.69
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ProMag Industries
PROMAG S&W M&P-40 MAGAZINE - 40 S&W - 10 ROUND CAPACITY - 25 ROUND BODY - STEEL - BLACK
The ProMag S&W M&P-40 Magazine delivers reliable, American-made performance for Smith & Wesson M&P 40 pistol owners who need a California-compliant 10-round option housed in a full-size 25-round body.
- California-compliant 10-round capacity in a standard 25-round profile body
- Durable steel construction built to withstand heavy, repeated use
- Precision-wound spring made from heat-treated chrome silicon wire for reliability
- Manufactured and assembled entirely in the USA with strict quality control
- Easy-loading design reduces thumb fatigue during range sessions
- Backed by ProMag's lifetime guarantee against manufacturer defects
Who This Is For
This magazine is ideal for California-based S&W M&P 40 owners who want a dependable, law-compliant extended-body magazine for range training, competition shooting, or everyday home defense use. It's also a smart choice for shooters who prioritize American-made components and want the peace of mind that comes with a lifetime manufacturer's warranty.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | 40 S&W |
| Capacity (Legal) | 10 Rounds |
| Body Size | 25-Round Profile |
| Material | Steel |
| Finish | Black |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Compatible Firearm | Smith & Wesson M&P 40 |
| Country of Origin | USA |
| Warranty | Lifetime (Manufacturer Defects) |
Frequently Asked Questions
Will this magazine fit all Smith & Wesson M&P 40 pistol variants?
This ProMag magazine is designed specifically for the Smith & Wesson M&P 40 platform. It is compatible with standard full-size M&P 40 pistols. If you own an M&P 40 Compact or M&P 40 Shield, we recommend verifying compatibility before purchasing, as compact and subcompact variants may have different magazine well dimensions.
Why does this magazine have a 25-round body if it only holds 10 rounds?
This magazine uses a standard 25-round body that has been permanently blocked to hold a maximum of 10 rounds, making it fully compliant with California's magazine capacity laws. The larger body profile provides a comfortable grip extension and is commonly preferred by competition and range shooters who want a fuller grip without exceeding legal capacity limits.
Is the 10-round block permanent, and is this magazine legal in California?
Yes, the 10-round block is permanently installed at the factory, making this magazine compliant with California's Penal Code restrictions on magazine capacity. Because the restriction is built into the magazine body — not a removable insert — it qualifies as a fixed-capacity magazine for use in California. Always verify current local and state regulations, as laws can change.
- Caliber:
- 40 S&W
- Capacity:
- 10/25 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Pistol Magazine
- CA Compliant:
- Yes
- Platform:
- M&P 40
- Material:
- Steel
