Promag Fn 5.7x28mm Ar 55rd Drum Fde

The ProMag FN 5.7x28mm AR 55-round drum magazine delivers extended firepower for the FN 5.7 AR-style carbine platform. Built using a proven combination of heat-treated high carbon steel and precision injection-molded mil-spec polymer, this drum magazine provides operators and serious shooters with significantly higher round capacity than standard box magazines, enabling longer training strings and extended tactical engagements without frequent reloads.

The 55-round capacity makes this drum magazine ideal for extended range sessions, force-on-force training, and duty applications where reload speed and magazine transitions are operational concerns. The dual-construction approach—combining traditional stamping and welding with modern polymer injection molding—ensures reliable feeding and durability across thousands of rounds. This particular design is engineered specifically for the FN 5.7x28mm AR carbine and does not fit FN 5.7 pistol platforms, making compatibility verification essential before purchase. Every ProMag magazine ships backed by a lifetime manufacturer's defect warranty, reflecting confidence in both materials and construction standards.

The FN 5.7x28mm platform occupies a distinct niche in the modern tactical rifle market, offering reduced recoil, low muzzle rise, and highly efficient barrier-blind ballistics compared to traditional intermediate cartridges. Operators running this caliber benefit from lighter ammunition weight, higher round counts per kit, and faster follow-up accuracy—advantages amplified when paired with a high-capacity drum magazine. The FDE (Flat Dark Earth) finish provides visual uniformity with contemporary tactical equipment while maintaining corrosion resistance under field conditions.

Drum magazines require proper handling and inspection before use; ensure smooth rotation and feed testing with live ammunition in a safe environment. Magazine weight increases substantially when fully loaded—plan accordingly for loadout and transition drills. This product is manufactured in the USA and represents ProMag's commitment to domestic magazine production standards.