This is an OEM replacement high capacity magazine for the Umarex H&K UMP Sportline AEG Airsoft Gun.
This is an OEM replacement high capacity magazine for the Umarex H&K UMP Sportline AEG Airsoft Gun. It may work with other brands AEG but cannot be guaranteed by Airsoft GI.
Magazine Capacity: 400 rounds
Package includes: One (1) magazine
High Capacity Magazine Operation:
- Find the trap door, usually located on the top of the magazine near the loading nozzle.
- Open trap door and fill reservoir with high quality BBs.
- Wind the wheel at the bottom of the magazine (notice the pitch and volume of the click).
- Continue to wind wheel until pitch changes. Once the click gets louder, or begins to "double click," the magazine is fully wound.
- Insert magazine into gun and fire. You may need to rewind the wheel during play.