Complex sentence: Kel-Tec claims it is the flattest and lightest 9 mm pistol ever mass-produced, it was designed as a concealment backup weapon for Law Enforcement and for civilian concealed carry.
Split into simpler sentences: Kel-Tec claims it is the flattest and lightest 9 mm pistol ever mass-produced. It was designed as a concealment and backup weapon for law enforcement and for civilian concealed carry.