The HK MP7 Gas Blowback is a high quality, top of the line gun with a fiber reinforced polymer body, functioning cocking handle, and a gas-in-mag design. The real blowback simulates what it is like to shoot a firearm. The adjustable flip-up front metal sight allows for precision shooting. The Retractable shoulder stock and folding grip allow for comfort and customization to the preference of the shooter. The gun shoots at over 900 shots a minute! The adjustable hop-up and metal Picatinny rails complete the design exquisitely. Used extensively in mil-sim events.