Cpd Magazine Ar15 .400 Legend 10rd Blackened S/s

The Centerpoint .400 Legend AR-15 magazine in 10-round capacity is purpose-built for shooters running the .400 Legend cartridge in AR-pattern rifles. Unlike generic magazines that require modification or improvisation, this Duramag stainless steel magazine features internal rib geometry engineered specifically for .400 Legend feeding and cartridge stacking—the kind of detail that separates reliable performance from frustration at the range or in the field. If you've invested in a .400 Legend upper, you deserve magazines that were actually designed for it.

Built from 410 stainless steel with a blackened T-360 coating, this magazine resists corrosion and wear in ways polymer alternatives simply can't match. Stainless won't flex, swell, or degrade from extended loaded storage or temperature swings—a real advantage if your rifle sits ready for months between hunts or range sessions. The yellow AGF follower and Everflex spring work together to ensure consistent round feeding under demanding conditions, and the magazine body is clearly marked with ".400 Legend" for quick identification, especially useful if you run multiple calibers across your AR collection.

This is the 10-round capacity, making it a practical choice for hunting or general shooting while staying legal in most jurisdictions. Duramag's reputation in the precision magazine market stems from obsessive attention to geometry and material quality—not marketing hype. If you're serious about your .400 Legend rifle, don't settle for workarounds.

Key Features

• Purpose-built internal geometry for .400 Legend feeding and reliable cartridge stacking
• 410 stainless steel construction with blackened T-360 coating for durability and corrosion resistance
• 10-round capacity
• Yellow AGF follower and Everflex spring for consistent feeding
• Clearly marked ".400 Legend" on body and follower for quick identification
• Safe for extended loaded storage without flex or swelling
• AR-15 pattern compatibility

Specifications

Frequently Asked Questions

Will this magazine work in my .400 Legend AR-15?

Yes. This magazine is specifically engineered for .400 Legend cartridges in AR-15 pattern rifles. The internal geometry is optimized for .400 Legend feeding and cartridge stacking.

What makes stainless steel better than polymer for long-term storage?

Stainless steel won't flex, swell, or degrade from being stored loaded or exposed to temperature fluctuations. Polymer magazines can experience dimensional changes over time and extended loaded storage; this stainless construction remains stable under those conditions.

Is this magazine marked so I can tell it apart from my other mags?

Yes. The magazine body and follower are both clearly marked with ".400 Legend," making quick identification easy if you run multiple calibers across your rifle collection.

What coating is applied to the stainless steel?

The magazine features a blackened T-360 coating, which provides corrosion resistance and durability through harsh conditions while maintaining the stainless steel base material.