DuraMag AR-15 Speed Magazine 20rd 300 Blackout/223/5.56 Gray

The DuraMag Speed magazine addresses the critical need for reliable feeding in AR-15 platforms chambered for multiple calibers. This 20-round aluminum magazine handles both .223 Remington/5.56 NATO and 300 Blackout cartridges with consistent performance across diverse shooting applications.

What Makes This Different

Unlike standard GI magazines that often struggle with mixed caliber compatibility, the DuraMag Speed features optimized geometry that accommodates the varying case dimensions of both .223/5.56 and 300 Blackout rounds. The enhanced follower design reduces binding and improves feeding reliability by 15% compared to mil-spec alternatives. Advanced aluminum construction provides the strength of steel magazines while maintaining 20% less weight.

Key Features

• Dual-caliber compatibility for .223 Remington, 5.56 NATO, and 300 Blackout
• 6061-T6 aluminum body with Type III hard anodized finish in gray
• Anti-tilt follower with improved geometry for consistent feeding
• Stainless steel spring rated for over 10,000 compression cycles
• Textured grip panels for positive handling in wet conditions
• STANAG 4179 compliant for NATO compatibility
• 20-round capacity optimized for precision shooting and hunting applications

Field testing demonstrates exceptional reliability across temperature ranges from -40°F to 160°F without feeding malfunctions. The magazine performs consistently in competitive shooting environments where rapid reloads and absolute reliability determine success. Hunters appreciate the reduced capacity for compliance with state regulations while maintaining the versatility to switch between supersonic .223/5.56 loads and subsonic 300 Blackout rounds.

Technical Specs

• Capacity: 20 rounds
• Compatible Calibers: .223 Remington, 5.56 NATO, 300 AAC Blackout
• Material: 6061-T6 aluminum body, stainless steel spring
• Finish: Type III hard anodized gray
• Length: 7.1 inches overall
• Weight: 3.2 ounces empty
• Platform: AR-15/M16 family rifles
• Country of Origin: United States

Professional shooters recognize DuraMag's commitment to manufacturing magazines that function reliably when performance matters most. The Speed series represents proven engineering focused on consistent ammunition delivery rather than unnecessary features that compromise reliability.