PROMAG AR-15 MAGAZINE - 556 NATO/223 REM - 10 ROUND CAPACITY - 40 ROUND BODY - POLYMER - BLACK
ProMag Industries
$30.69
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ProMag Industries
PROMAG AR-15 MAGAZINE - 556 NATO/223 REM - 10 ROUND CAPACITY - 40 ROUND BODY - POLYMER - BLACK
The ProMag AR-15 10/40 Magazine delivers California-compliant, 10-round capacity in a full-sized 40-round polymer body — purpose-built for AR-15 rifles chambered in 5.56 NATO and .223 Remington.
- California-compliant 10-round capacity in a standard 40-round form factor
- Precision-wound springs use heat-treated chrome silicon wire for consistent feeding
- Durable polymer construction resists impact, corrosion, and everyday field wear
- Drop-free design ensures fast, reliable mag changes during range sessions
- Made in the USA and backed by a ProMag lifetime manufacturer's defect guarantee
- Every assembly stage is inspected for consistent quality and long-term reliability
Who This Is For
This magazine is ideal for California residents and compliant-state shooters who want the ergonomic feel and grip of a full-size 40-round AR-15 magazine without exceeding the 10-round legal limit. It's a great choice for competitive shooters, range enthusiasts, and home defenders who demand reliable feeding, a familiar profile, and American-made quality in a compliant package.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | 5.56 NATO / .223 Remington |
| Capacity | 10 Rounds (Blocked) |
| Body Size | 40-Round Profile |
| Material | Polymer |
| Color | Black |
| Compatibility | AR-15 Platform Rifles |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Country of Origin | USA |
| Warranty | Lifetime (Manufacturer Defects) |
Frequently Asked Questions
Will this magazine fit my AR-15 rifle?
Yes. This ProMag magazine is designed to fit standard AR-15 platform rifles chambered in 5.56 NATO or .223 Remington. It uses a standard STANAG-compatible form factor and should drop in and lock up correctly on the vast majority of mil-spec and commercial AR-15 lower receivers. Always verify compatibility with your specific firearm before purchasing.
Is this magazine legal to purchase and use in California?
Yes. This magazine is specifically blocked to a 10-round capacity, making it compliant with California's magazine capacity restrictions. The 40-round body is permanently modified to hold no more than 10 rounds, so it is legal to purchase, own, and use in California and other states with similar capacity limits. Always verify current laws in your jurisdiction before buying.
How does the 10/40 configuration affect handling and performance?
The 40-round body provides a longer grip surface compared to a standard 10-round magazine, which many shooters find more comfortable and ergonomic — especially when shooting from a bench or prone position. Feeding performance is maintained by ProMag's precision-wound chrome silicon spring, which is engineered to provide consistent tension across the full range of rounds loaded.
- Caliber:
- 556 NATO
- Capacity:
- 10/40 Round
- Color:
- Black
- Follower Color:
- Black
- Type:
- Rifle Magazine
- CA Compliant:
- Yes
- Platform:
- AR-15
- Material:
- Polymer
