The first commercially available smart gun in the US is apparently available in the Los Angeles area. The German made Armatrix i-P-one handgun will not fire unless its synced up with a smart watch worn by the gun owner and only when the green light comes on in the pistol grip. The gun is only being sold at the Oak Tree Gun Club in Santa Clarita and nowhere else. The gun costs about 14-hundred dollars and the smart watch another 400 bucks.