DuraMag 5-Round 350 Legend AR-15 SS Replacement Magazine - Black

The DuraMag 5-Round 350 Legend AR-15 SS replacement magazine is purpose-built for shooters running .350 Legend uppers on AR-15 platforms. This single-stack design holds five rounds and is engineered with internal and external geometries optimized specifically for reliable .350 feeding and round stacking—a detail that separates ammunition-specific magazines from generic AR mags. If you're building or upgrading a .350 Legend AR, using a magazine designed for your cartridge is a straightforward way to eliminate feeding uncertainty at the range or in the field.

Built from 410 stainless steel and finished with DuraMag's T-360 coating, this magazine is built to handle storage in varying conditions without the flex or swell that polymer magazines can develop over time or when stored loaded. The .350 Legend marking on both the body and follower makes it easy to grab the right mag in a mixed collection, and the stainless construction means it'll keep running through dust, moisture, and temperature swings that would degrade lesser materials.

The 5-round capacity makes this magazine well-suited to hunting applications where states impose round limits, or for shooters who prefer a compact, lightweight setup. Whether you're working up loads at the bench, hunting, or just want a reliable spare mag, a purpose-built .350 Legend magazine removes one variable from the equation.

Key Features

• .350 Legend–specific internal geometry for optimized feeding and round stack
• 410 stainless steel construction resists rust and corrosion in harsh conditions
• T-360 coating for enhanced durability and performance longevity
• Marked with .350 Legend on body and follower for quick identification
• Safe for extended loaded storage without flex or swell
• AR-15 pattern compatibility

Specifications

Frequently Asked Questions

Will this magazine work in my .350 Legend AR-15?

Yes. The DuraMag 5-round magazine is designed for AR-15 pattern rifles chambered in .350 Legend and uses internal geometry optimized for .350 feeding and round stacking.

Can I store this magazine loaded?

Yes. The stainless steel construction and T-360 coating mean the magazine is safe for extended loaded storage without the flex or swell that polymer magazines may experience over time or due to temperature changes.

Why use a .350 Legend–specific magazine instead of a standard AR-15 mag?

A magazine designed specifically for .350 Legend features internal geometry optimized for reliable feeding and proper round stacking with that cartridge, which reduces the risk of feeding issues compared to a generic AR-15 magazine.

How do I identify this magazine if I have several different caliber mags?

The DuraMag 5-round .350 Legend magazine is clearly marked with ".350" on both the body and the follower, making it easy to pick out the correct magazine for your rifle.