The judge will find as a matter of fact that he used a handgun in commission of a felony in controversion to Penal Code 12022.5. Otherwise known as a gun enhancement. He is looking at at least another three years to be run consecutively with his existing sentance and could get up to 10 more.
I hope it happens, but I’m not holding my breath. Judges have a bad habit of inventing “exceptions” to gun enhancement upgrades for cops...except when they are border patrol going after illegal immigrants.