The MP7 is a German Personal Defence Weapon (PDW) manufactured by Heckler & Koch (H&K) and chambered for the HK 4.6×30mm cartridge. It was designed with the new cartridge to meet NATO requirements published in 1989, as these requirements call for a personal defense weapon (PDW) class firearm, with a greater ability to defeat body armor than current weapons limited to conventional pistol cartridges.

For Tokyo Marui MP7A1 Gas Blowback sub-machine gun is real actuation and usability, and a powerful recoil attractive gas blowback model that was linked to the fire, appeared MP7A1 of  the "gas blowback machine gun series"!