The MP7 is a German submachine gun 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. The MP7 went into production in 2001. It is a direct rival to the FN P90, also developed in response to NATO's requirement. The weapon has been revised since its introduction and the current production version is the MP7A1.
The proliferation of high-quality body armor has begun to make guns that fire pistol ammunition (such as Heckler & Koch's earlier MP5 submachine gun or USP pistol) ineffective. In response to this trend, Heckler & Koch designed the MP7 (along with the now cancelled UCP pistol, which uses the same ammunition) to penetrate body armor, but small enough to be used in place of either a pistol or a submachine gun.
- The MP7 modmaster and variants (not including the MP7-H C BLK as it was release at a later date) where re-balanced in the 1.2 patch having the armor penetration reduced from %40 to 10%, due to the weapon being OVERPOWERED for its Tier.
- MP7-H C BLK is a unique Tier IX (9) weapon which was released in the Black Edition weapons pack.