ProMag RM20 AR-15 Magazine 20rd 5.56/.223 DuPont Zytel Polymer

The ProMag RM20 delivers reliable feeding and consistent performance for AR-15 platforms chambered in 5.56x45mm NATO and .223 Remington. This 20-round magazine features a roller follower system and DuPont Zytel polymer construction for enhanced durability. The mid-capacity design provides an optimal balance between ammunition capacity and maneuverability.

What Makes This Different

The RM20 incorporates a precision-engineered roller follower that reduces friction and binding during feeding cycles. DuPont Zytel polymer construction offers superior impact resistance compared to standard polymer blends while maintaining lightweight characteristics. The 20-round capacity meets competition requirements and hunting regulations in restricted states while providing faster reloads than 10-round alternatives.

Key Features

• Roller follower system eliminates tilt and ensures smooth ammunition feeding
• DuPont Zytel polymer body resists cracking and environmental stress
• 20-round capacity optimized for precision shooting and restricted jurisdictions
• Compatible with all mil-spec AR-15 lower receivers and variants
• Anti-tilt follower design prevents double-feeds and misfeeds
• Textured grip panels provide secure handling in adverse conditions
• Steel spring rated for extended compression cycles

Field testing demonstrates consistent lockback function on empty and reliable feeding across various ammunition weights from 55 to 77 grains. The magazine performs effectively in competitive shooting environments, tactical training scenarios, and hunting applications where precise shot placement takes priority over high capacity. Temperature cycling from -20°F to 140°F shows minimal impact on feeding reliability or structural integrity.

Technical Specs

• Capacity: 20 rounds
• Caliber: 5.56x45mm NATO/.223 Remington
• Material: DuPont Zytel polymer body with steel internals
• Follower: Anti-tilt roller design
• Compatibility: AR-15 platform rifles and carbines
• Overall Length: Approximately 7.5 inches
• Weight: 4.2 ounces empty
• Finish: Matte black polymer

The ProMag RM20 addresses the specific needs of shooters requiring reliable mid-capacity magazines without sacrificing build quality or feeding performance. ProMag's established manufacturing standards and quality control processes ensure consistent dimensional tolerances across production runs.