Best outcome possible. First time offender 24 years old.

Depending how close you are to that 25 pound level on the cannabis might dictate what your offer is. However, the fact that you were also in possession of several firearms will make it possible for the state to file first degree felony charges of Armed Possession.  However, because this is your first offense, your lawyer should aggressively go after charge reductions and avoid any mandatory sentencing that might apply. Best possible outcome is tough to say, but barring any real suppression issues, you may be able to get probation, but its hard to say without looking at the case more closely.