DURAMAG AR-15 MAGAZINE - 223 REM / 5.56 NATO - 10 ROUND CAPACITY - 20 ROUND BODY - ALUMINUM - BLUE

Duramag
MPN:
2023005175CPD
UPC:
766897411618
$20.99 - $22.69
(1 review)
Current Stock:
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The DURAMAG AR-15 10-Round Aluminum Magazine in Blue delivers competition-grade reliability and durability in a California-compliant, state-law-ready package — purpose-built for serious AR-15 and M4 shooters who refuse to compromise on performance.

  • Permanently blocked to 10-round capacity using a proprietary block and rivet
  • Compatible with .223 Rem, 5.56 NATO, and .300 Blackout chamberings
  • Premium aluminum construction resists flexing, swelling, and long-term deformation
  • Anodized finish ensures smooth feeding, easy loading, and lasting corrosion resistance
  • Advanced interior and exterior geometries engineered for ultimate reliability
  • Safe for extended storage while loaded — no add-ons or unloading required

Who This Is For

This magazine is ideal for California residents and shooters in other capacity-restricted states who demand a premium, law-compliant magazine without sacrificing the build quality of a full-size 20-round body. It's equally at home on the range, in competition, or as a reliable home-defense option for AR-15 and M4 platform owners who want dependable feeding every time the trigger breaks.

DURAMAG AR-15 10-Round Aluminum Magazine in Blue – front view DURAMAG AR-15 10-Round Aluminum Magazine in Blue – alternate angle

Specifications

BrandDURAMAG
Caliber.223 Rem / 5.56 NATO / .300 Blackout
Capacity10 Rounds (permanently blocked)
Body Size20-Round body profile
MaterialAluminum
FinishAnodized (Blue)
Platform CompatibilityAR-15 / M4
Blocking MethodProprietary block and rivet (permanent)
ComplianceCalifornia and capacity-restricted states
Country of OriginUSA

Frequently Asked Questions

Is the 10-round block truly permanent, and can it be removed?

Yes. DURAMAG uses a proprietary block-and-rivet system specifically engineered for permanence. The block is not a simple insert — it is mechanically riveted inside the magazine body, making removal extremely difficult and ensuring the magazine remains compliant with capacity restrictions. This design meets the legal requirements for permanently altered magazines in California and similar states.

Will this magazine fit all standard AR-15 lowers, and does it work with .300 Blackout uppers?

Yes — this DURAMAG is designed to the standard AR-15/M4 STANAG specification, so it seats and locks in virtually all mil-spec and commercial AR-15 lower receivers. It is also fully compatible with .300 Blackout uppers, giving shooters added versatility across different upper configurations on the same lower platform.

Can I store this magazine loaded for extended periods without damaging the spring?

Absolutely. One of the key advantages of DURAMAG's aluminum construction is that the magazine body will not flex or take a set under sustained spring pressure the way polymer magazines can. The high-quality spring is rated for extended loaded storage without loss of tension or feeding reliability, so you can keep it staged and ready without worry.

Capacity:
10/20 Round
Caliber:
556 NATO
Color:
Blue
Follower Color:
Black
Type:
Magazine
CA Compliant:
Yes
Platform:
AR-15
Material:
Aluminum

Reviews

  • 5
    Perfect for dry fire

    Posted by Richard Swigart on Jan 13th 2026

    The blue is commonly used for simunitions but I found it perfect for dry fire/dummy rounds.