ProMag DPMA3 AR-10 Magazine 20rd .308 Win Black Polymer

The ProMag DPMA3 delivers reliable feeding and robust construction for AR-10 platform rifles chambered in .308 Winchester. This 20-round magazine combines DuPont Zytel polymer construction with proven geometry to ensure consistent performance across multiple shooting disciplines.

What Makes This Different

Unlike standard aluminum magazines, the DPMA3 utilizes DuPont Zytel polymer that resists impact damage and environmental stress cracking. The reinforced feed lips maintain proper cartridge presentation even after thousands of loading cycles. Advanced follower geometry reduces bolt-over-base malfunctions that plague inferior designs, while the steel spring maintains consistent tension throughout the magazine's service life.

Key Features

• 20-round capacity for .308 Winchester and 7.62x51 NATO cartridges
• DuPont Zytel polymer construction resists cracking and deformation
• Reinforced steel feed lips prevent cartridge misalignment
• Compatible with DPMS/SR-25 pattern AR-10 rifles
• Anti-tilt follower design ensures smooth feeding
• Textured exterior provides secure grip during tactical reloads
• Removable floor plate allows complete disassembly for cleaning

Field testing demonstrates consistent feeding across various bullet weights from 147-grain to 175-grain match ammunition. The magazine functions reliably in temperatures ranging from -20°F to 140°F, making it suitable for competition shooting, hunting applications, and tactical training. The polymer construction weighs significantly less than steel alternatives while maintaining structural integrity under stress.

Technical Specs

• Capacity: 20 rounds
• Caliber: .308 Winchester/7.62x51 NATO
• Material: DuPont Zytel polymer body with steel spring
• Overall Length: 7.75 inches
• Width: 0.875 inches
• Weight: 4.2 ounces (empty)
• Compatibility: DPMS/SR-25 pattern AR-10 rifles
• Finish: Matte black
• Country of Origin: USA

ProMag's DPMA3 represents a cost-effective solution for shooters requiring additional magazine capacity without compromising reliability. The proven design eliminates common feeding issues associated with budget alternatives while delivering the durability expected from professional-grade equipment.