ProMag DRMA1-FDE 50-Round .308 Drum Magazine AR-10 FDE Polymer

The ProMag DRMA1-FDE delivers extended firepower with its 50-round capacity designed specifically for AR-10 pattern rifles chambered in .308 Winchester/7.62x51mm NATO. This high-capacity drum magazine eliminates frequent reloading during extended range sessions and competitive shooting events.

What Makes This Different

Unlike standard 20-round magazines, this drum configuration provides 2.5 times the ammunition capacity while maintaining reliable feeding through ProMag's proven spring-loaded mechanism. The FDE (Flat Dark Earth) polymer construction offers corrosion resistance and reduced weight compared to steel alternatives. Internal components feature heat-treated steel springs rated for consistent performance across thousands of loading cycles.

Key Features

• 50-round capacity reduces reload frequency during training and competition
• FDE polymer body resists impact damage and environmental exposure
• Compatible with DPMS/SR-25 pattern rifles in .308 Winchester and 7.62x51mm NATO
• Spring-loaded follower system ensures reliable ammunition feeding
• Reinforced feed lips prevent deformation under magazine pressure
• Easy-load design accommodates rapid ammunition insertion
• Textured grip surfaces provide secure handling during manipulation

Field performance demonstrates consistent feeding across various ammunition weights from 147-grain to 175-grain projectiles. The drum's low-profile design maintains compatibility with standard magazine wells while providing clearance for bipods and shooting rests. Temperature testing shows reliable function from -20°F to 140°F, making it suitable for diverse environmental conditions.

Technical Specs

• Capacity: 50 rounds
• Caliber: .308 Winchester/7.62x51mm NATO
• Material: FDE polymer body with steel internals
• Compatibility: AR-10, DPMS, SR-25 pattern rifles
• Weight: Approximately 1.8 lbs empty
• Overall length: 6.5 inches
• Width: 4.2 inches
• Manufacturer: ProMag Industries

This drum magazine addresses the tactical disadvantage of limited ammunition capacity inherent in standard AR-10 magazines. ProMag's established reputation for aftermarket magazines, combined with the practical benefits of extended capacity, makes the DRMA1-FDE a logical upgrade for serious shooters requiring sustained fire capability.