ProMag DPMA1 20-Round .308 Win AR-10 Magazine - Blued Steel

The ProMag DPMA1 delivers reliable feeding for AR-10 platform rifles chambered in .308 Winchester and 7.62x51mm NATO. This 20-round magazine combines proven steel construction with precision engineering to ensure consistent performance across multiple shooting disciplines.

What Makes This Different

Unlike polymer alternatives, the DPMA1 features blued steel construction that withstands repeated loading cycles and maintains dimensional stability under stress. The magazine body utilizes heat-treated steel walls that resist deformation, while the internal geometry matches SAAMI specifications for optimal cartridge presentation. This construction approach delivers feeding reliability that matches or exceeds OEM standards.

Key Features

• 20-round capacity for .308 Winchester and 7.62x51mm NATO cartridges
• Blued steel body construction with corrosion-resistant finish
• Compatible with AR-10, LR-308, and DPMS pattern rifles
• Anti-tilt follower design prevents magazine-related malfunctions
• Removable floorplate for cleaning and maintenance access
• Steel feed lips maintain consistent cartridge positioning
• Standard STANAG magazine profile fits most AR-10 magazine wells

Field testing demonstrates consistent feeding across various bullet weights from 147-grain FMJ to 175-grain match ammunition. The magazine functions reliably in competition environments, tactical applications, and hunting scenarios where quick follow-up shots matter. The steel construction maintains spring tension and follower alignment through thousands of loading cycles, while the blued finish resists environmental corrosion during extended field use.

Technical Specs

• Capacity: 20 rounds
• Caliber: .308 Winchester / 7.62x51mm NATO
• Construction: Heat-treated blued steel body
• Compatibility: AR-10, LR-308, DPMS pattern rifles
• Overall Length: Approximately 7.75 inches
• Weight: 8.2 ounces (empty)
• Follower: Anti-tilt polymer design
• Spring: Heat-treated steel with consistent tension

The DPMA1 represents a cost-effective solution for shooters requiring additional magazine capacity without compromising reliability. ProMag's manufacturing standards ensure consistent quality control, while the traditional steel construction appeals to users who prioritize proven materials over lighter alternatives.