CMMG AR15 MAGAZINE - 350 Legend - 10 ROUND CAPACITY - 20 ROUND BODY - Black

CMMG AR15 MAGAZINE - 350 Legend - 10 ROUND CAPACITY - 20 ROUND BODY - Black

CMMG
MPN:
35AFC66
UPC:
810046230350
$42.69
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Description

The CMMG 350 Legend AR-15 Magazine delivers reliable, California-compliant feeding in a robust stainless steel body — purpose-built for shooters running .350 Legend in a standard AR-15 platform.

  • California-compliant 10-round capacity housed in a full-size 20-round body
  • Engineered specifically for .350 Legend ammunition in AR-15 magazine wells
  • Durable stainless steel construction with a sleek matte black finish
  • Drop-free design ensures fast, consistent reloads under pressure
  • Feeds reliably with the wide .350 Legend cartridge geometry
  • Backed by CMMG's two-decade legacy of precision AR manufacturing

Who This Is For

This magazine is ideal for California hunters, competitive shooters, and range enthusiasts who have built or purchased a .350 Legend AR-15 and need a state-legal, purpose-specific magazine. The 20-round body profile maintains the familiar ergonomic feel of a standard AR-15 mag while keeping capacity within California's 10-round limit — a smart choice for anyone who doesn't want to compromise on build quality or form factor.

Specifications

Brand CMMG
Caliber .350 Legend
Capacity 10 Rounds (CA Compliant)
Body Size 20-Round Profile
Material Stainless Steel
Finish Matte Black
Compatible Platform Standard AR-15 Magazine Well
State Compliance California 10-Round Legal

Frequently Asked Questions

Will this magazine work in any standard AR-15 lower receiver?

Yes. This CMMG magazine is designed to fit any standard AR-15 magazine well, the same interface used by the vast majority of AR-15 pattern rifles on the market. However, your upper receiver and barrel must be chambered in .350 Legend — the magazine's internal geometry and feed lips are optimized for that specific cartridge and will not feed standard 5.56/.223 ammunition reliably.

Why does a 10-round magazine have a 20-round body?

CMMG uses a full 20-round body shell to maintain the correct internal geometry needed to reliably feed the wider .350 Legend cartridge. The larger case diameter of .350 Legend requires more internal space than 5.56, so building the magazine in a 20-round body allows for proper stacking and feeding of 10 rounds without compromising reliability. It also preserves the familiar grip and handling feel of a standard AR mag.

Is this magazine permanently blocked to 10 rounds for California compliance?

Yes. This magazine is sold as a California-compliant, 10-round-limited product. It is blocked and intended to meet California's magazine capacity restrictions. It is not designed or intended to be altered or restored to a higher capacity. Always verify current California Department of Justice regulations regarding magazine compliance before purchasing or using any magazine in the state.

Additional Information
Caliber:
350 Legend
Capacity:
10/20 Round
Color:
Black
Type:
Rifle Magazine
CA Compliant:
Yes
Platform:
AR15
Material:
Steel