The Senjata persona defense weapon is a rather curious gun, it is somewhere between an automatic pistol, and a weaken Micro UZI, as it is the only automatic secondary weapon without any upgrade(the other one is the machine pistol with the blue coin upgrade), and it will first upgrade to become silent and end up with a muzzle breaker like all the SMGs in the game. It is based on the ST Kinetics CPW from Singapore. It carries a decent size magazine, so it is good as a primary weapon replacement because of the mag size and the okay firing rate. At the same time, it is not a good backup weapon as it lacks the punch of the casull, the stability of pistol, the instance push of the compact shotgun. So think wisely before picking this gun up if you lack the flexibility to change back.