A concise review by Defense Laboratory of the licensed Umarex UMP.45 AEG... "Quick Review of AEG (Airsoft Electric) HECKLER & KOCH UMP .45 from manufacturer UMAREX! We pass all the information on this model to those who are in doubt about getting one to start in the sport or for those who are already a more experienced player too! We hope the video content helps you with the information!"