Although referred to as MP, the FAC MP6 is not an MP by definition. It's standart calibre is the new FAC 4.8x33mm, a high velocity subcalibre round in a plastic cone to fit in a 7.62x33 case. Therefore it is more a PDW or an assault rifle, what should be it's main job. This weapon is a compact, but full power assault rifle, with high penetration, high hit probability, long range, high impact velocity and high wounding effect. The term MP is used due it's MP5 look, wich was chosen because so many operatives worldwide are familiar with it.
On the technical site, it uses the H&K roller-delayed blowback system and is therefore very accurate and controllable even in full auto fire. The system also offers a tactical top rail and front handguard. Top rail can be used to attach sights and tactical equipment, whereas the front handguard has fixed tactical flashlight and tactical grip. The taclight has 1000 lumen, 400 lumen or 1000 lumen stroboscopic output, wich can be selected with the integrated controlls. To fit left handed operators, the fire selector is ambidextrous and has four selectable positions, including a 3-burst mode. In order to cover a wide tactical spectrum, the MP6 Advanced also uses an integral aluminum suppressor for covered operations.