Get high marks on your gaming report card with a few extra 120-round mid-capacity magazines for your HK UMP airsoft AEG. Specifications 120 Rounds Fits the HK UMP Rifle Hi-Cap Magazine Compatibility: For H&K / Umarex and other compatible UMP Series Airsoft AEG Rifles (Will not work for G&G, Double Eagle UMG series Airsoft AEG) Capacity: 120rds About Elite Force / Umarex Since 1972 Umarex has created a world of adventure for sport shooters, recreational shooters and hunters. Its high-performance, high quality models permit training under highly realistic conditions.