Umarex 300rd H amp;K Hk416 Hi-Capacity Magazine for M4 / M16 Series Airsoft AEG Rifle Features: * Fully Licensed by H amp;K * Laser Engraved Trademarks * Winding Requires Specialty Tool (tool included) * Steel Outer Casing * High Strength Polymer Internals Compatibility: Works with Tokyo Marui, Umarex, G amp;P and other compatible M4 / M16 Series Airsoft AEG Rifles Capacity: 320rds Manufacturer: Umarex (Licensed by H amp;K)
