PROMAG AR-15 MAGAZINE - 556 NATO/223 REM - 10 ROUND CAPACITY - 40 ROUND BODY - POLYMER - FDE
ProMag Industries
$27.69
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ProMag Industries
PROMAG AR-15 MAGAZINE - 556 NATO/223 REM - 10 ROUND CAPACITY - 40 ROUND BODY - POLYMER - FDE
The ProMag AR-15 10/40 Magazine in Flat Dark Earth delivers California-compliant 10-round capacity in a full-size 40-round polymer body, giving Golden State shooters the familiar grip and feel of a standard-capacity mag without sacrificing legal compliance.
- California-compliant 10-round capacity housed in a 40-round profile body
- Durable polymer construction withstands hard use and harsh environments
- Precision-wound chrome silicon springs ensure reliable, consistent feeding
- Flat Dark Earth finish coordinates with FDE-accented AR-15 builds
- Made in the USA and backed by a lifetime manufacturer's defect guarantee
- Compatible with standard AR-15 lower receivers chambered in 5.56 NATO and .223 Rem
Who This Is For
This magazine is purpose-built for California-based AR-15 owners who want a compliant magazine that still looks and handles like a full-size mag. Whether you're a range shooter, a competition shooter navigating state capacity laws, or simply building a California-legal AR, this ProMag FDE 10/40 keeps your rifle running reliably while staying on the right side of the law.
Specifications
| Brand | ProMag Industries |
|---|---|
| Caliber | 5.56 NATO / .223 Rem |
| Capacity | 10 Rounds (blocked) |
| Body Size | 40-Round Profile |
| Material | Polymer |
| Color / Finish | Flat Dark Earth (FDE) |
| Spring Material | Heat-Treated Chrome Silicon Wire |
| Compatibility | Standard AR-15 Lower Receivers |
| Country of Origin | USA |
| Warranty | Lifetime (Manufacturer Defects) |
Frequently Asked Questions
Why does this magazine have a 40-round body but only hold 10 rounds?
This magazine is permanently blocked to 10-round capacity to comply with California's magazine capacity restrictions. The internal follower and block prevent loading more than 10 cartridges, but the external dimensions remain those of a standard 40-round magazine — giving you a familiar grip length and ergonomic feel during use.
Will this magazine work with my AR-15 in .223 Remington as well as 5.56 NATO?
Yes. This ProMag magazine is fully compatible with both 5.56 NATO and .223 Remington ammunition. Both cartridges share the same case dimensions and feed identically through standard AR-15 magazine wells, so you can use either load with confidence.
Is the 10-round block permanent, and can this magazine be used in other states?
The magazine is designed and sold as a California-compliant, blocked 10-round magazine. The capacity block is intended to be permanent for compliance purposes. If you are purchasing this magazine for use in a state without capacity restrictions, you may want to verify local regulations and consider whether a standard-capacity magazine better suits your needs. Always confirm applicable laws in your jurisdiction before purchase.
- Caliber:
- 556 NATO
- Capacity:
- 10/40 Round
- Color:
- FDE
- Follower Color:
- Black
- Type:
- Rifle Magazine
- CA Compliant:
- Yes
- Platform:
- AR-15
- Material:
- Polymer
