ASC AR-15 223/5.56 NATO 20-Round Magazine - High-Performance, Durable, and Reliable Ammo Storage

The ASC AR-15 223/5.56 NATO 20-round magazine is a stainless steel rifle magazine built to outlast the competition. If you're running an AR platform in 5.56 or .223 Remington, a quality magazine that feeds reliably and handles years of hard use is non-negotiable—and ASC delivers both durability and performance from a USA-made product engineered for serious shooters.

ASC manufactures these magazines entirely in-house using .020 gauge 410 stainless steel, heat-treated for superior strength and long-term endurance. The material is chemically treated to military spec (QQ-P-35) for corrosion resistance, a critical feature if your rifle sees field conditions, humid storage, or regular outdoor use. The proprietary Marlube finish sets ASC apart: it's a wear-in coating that actually burnishes smoother with handling rather than degrading, while building self-lubricating properties into the steel itself. That means feeding stays smooth through hundreds of rounds without the need for additional maintenance or lubrication.

Twenty rounds is the practical standard for most AR shooters—compact enough for practical handling and magazine rotation, yet substantial enough for extended range sessions or field work. Whether you're stocking up for competition, hunting, or training, a magazine built to this standard will cycle reliably and hold up to the abuse that comes with real-world use.

Key Features

• 100% USA-manufactured stainless steel construction
• .020 gauge 410 stainless steel with heat treatment for durability
• Military-spec corrosion resistance coating (QQ-P-35)
• Proprietary Marlube self-lubricating finish that improves with use
• 20-round capacity for AR-15 platform rifles
• Compatible with 223/5.56 NATO ammunition

Specifications

Frequently Asked Questions

Will this magazine work with my AR-15?

Yes. This magazine is designed for AR-15 platform rifles chambered in 223 Remington or 5.56 NATO. It follows standard AR mag dimensions and will fit any mil-spec or commercial pattern lower receiver.

What makes ASC magazines different from other stainless steel magazines?

ASC manufactures these magazines from start to finish in the USA using heat-treated 410 stainless steel. The Marlube finish is a wear-in coating—it becomes smoother and more self-lubricating with use, rather than wearing away like typical finishes. Combined with QQ-P-35 corrosion treatment, these magazines are built for longevity in harsh conditions.

Is this magazine reliable for hunting or competition shooting?

ASC stainless steel magazines are built for durability and consistent feeding. The 20-round capacity suits both competition and field work, and the corrosion-resistant construction makes it a solid choice for outdoor use.

Do I need to lubricate or maintain this magazine?

The Marlube coating provides self-lubricating properties, so additional maintenance is not required. The finish actually improves with normal handling and use.