The Heckler & Koch 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 HK UMP Gas Blowback airsoft gun is from the Elite Force Airsoft line of Elite guns. In its selector mode it features a fourth option: 2-shot burst. Double-tap your opponents to your heart's content!